differential JEEP CJ 1953 Service Manual
[x] Cancel search | Manufacturer: JEEP, Model Year: 1953, Model line: CJ, Model: JEEP CJ 1953Pages: 376, PDF Size: 19.96 MB
Page 7 of 376
'Jeep*
UNIVERSAL SERIES
SERVICE
MANUAL
B
LUBRICATION
AND
PERIODIC SERVICES
Contents
PAR. SUBJECT
PAR.
SUBJECT
GENERAL
.B-l
Chassis
Lubrication
B-7
Engine
Lubrication System B-4, B-6
Special
Lubricants B-2
Fresh
Lubricant.
.B-3
LUBRICATION CHARTS
. Pages 8, 9
SERVICE
MAINTENANCE SCHEDULE.
.B-8
Air
Cleaner
B-2
5,
B-2
6
Air
Filter
—
F.E.E.C.
System Canister
B-2
4
Axle
U-Bolts B-49 Body
Lube
Points: B-65 Hood Hinge Pivot Points B-66
Glove
Compartment Door
Latch
B-6
7
Tailgate Hinges .B-68
Brakes,
Adjust .B-41
Brake
Linings .B-42
Brake
Master Cylinder B-40
Charging
Circuit
B-l9
Clutch
. B-43, B-44
Cooling System—Radiator. B-28, B-29 Differentials
........
.B-50, B-51, B-52, B-53
Distributor
B-14, B-l5
Engine
Oil B-9
Engine
Oil
Filter
B-10, B-ll
Engine
Tune-Up B-20
Exhaust
Emission Control System
B-2
2
Exhaust
Manifold Heat Control Valve. . . .B-l2
Exhaust
System
B-2 3
Fan
Belt . .B-21
Front
Axle U-Joint B-54, B-55
Generator
.B-16
Headlights B-61
Heater Controls B-62
Lights
and Controls B-59 Positive Crankcase Ventilation Valve. . . .B-l3
Shock Absorbers B-48
Spark
Plugs. B-17
Speedometer Cable. .B-60
Spring
Bushings.. . .B-46
Spring
Shackles .B-47
Steering
Gear
B-2 7
B-l. GENERAL
All
'Jeep' Universal vehicles require periodic
lubri
cation and other maintenance services for normal
vehicle
usage
and application to promote satis factory operation and prevent
excessive
wear. Un
der severe operating or atmospheric conditions
these
services should be performed more
often
than
under normal conditions. It should also be remem
bered that common short trips and
stop-and-go
driving
are more severe on lubrication
points
than
Starting
Circuit
B-l8
Tie
Rod and Drag
Link
Sockets
.
B-45
Tires
B-64
Transmission
and Transfer Case—
Lubricant
Level
Check B-30
General
B-31
Transfer
Case B-32
Transmission
.B-33
Transmission
and Transfer
Case
—
Lubricant
Change .B-34
General
.B-35
Transfer
Case B-36
Transmission
B-3
7, B-38
Transfer
Case Linkage B-39
Universal
Joints and Slip Joints.
.......
.B-58
Wheel
Bearings..
.........
. . .B-56, B-57
Windshield
Wiper and Washer B-63
LUBRICATION
OF
OPTIONAL EQUIPMENT
B-69
Centrifugal
Governor. .B-71
Pintle Hook .B-70
Powr-Lok
or
Trac-Lok
Differential B-72
PARTS REQUIRING
NO LUBRICATION.
. . .B-73
Alternator
Bearings. B-76
Clutch
Release Bearings.
.............
.B-74
Shock Absorbers B-78
Springs
B-7
7
Starter
Motor Bearings B-75
Water
Pump Bearings B-74
LUBRICATION REQUIREMENTS FOR OFF-HIGHWAY OPERATIONS
B-79
Air
Cleaner B-82
Chassis
Lubrication
B-83
Engine
Oil B-80
Engine
Oil
Filter
B-81
Differentials .B-86
Front
Axle U-Joints. B-84
Transfer
Case and Transmission .B-85
constant
speed
driving on highways, and even more
intensified in extreme cold or hot weather; there fore, vehicles driven under
these
conditions must
be lubricated and serviced more
often
than nor mally operated vehicles. The specifications of
types
and
amounts of lubricant given in the Lubrication
Chart
and
text
of this section should be closely
followed. The off-highway operation lubrication
notes,
given in the last part of the section, should
be followed when applicable. 7
Page 8 of 376
B
LUBRICATION D0®
® ® ®
FIG.
B-l—-LUBRICATION CHART
—
4-WHEEL DRIVE
VEHICLES
CHART NO.
ITEM
TO BE
LUBRICATED
10.
11.
13.
14.
Chassis
Bearings. . .
Spring
Shackle and Pivot Bushings...
Universal
Joints Propeller Shaft
Front
Axle
Steering
Gear
Housing
Rear
Wheel BearingstS
Front
Wheel Bearings
.
Transmission:
3
Speed
4 Speed °
Transfer
Case
Differentials
Front.
Rear
Speedometer Cable
Generator
— F4
Distributor
— F4
Oiler
Wick
Pivot.
Gam
Distributor
Cam — V6.
Air
Cleaner — F4
—
V6
Engine
— F4
Engine
— V6.
FREQUENCY
1000 miles — 1.600 km.
Each
2,000
miles
/With
Lube
Fitting;
(Each
2,000
miles [Without
Lube
Fittings:
\No Lubrication
Each
2,000
miles
f
Check
each
2,000
miles
\
Change each
12,000
miles
Check
each
2,000
miles
fWith
Lube
Fittings:
1
Sparingly each
2,000
miles
J
Without
Lube
Fitting:
|
Disassemble to lubricate
\each
12,000
miles
Disassemble to lubricate
each
12,000
miles
I
Check
each
2,000
miles
l
Change each
12,000
miles
/Check
each
2,000
miles
l
Change each
12,000
miles
!Check
each
2,000
miles
\
Change each
12,000
miles
f
Check
each
2,000
miles
\
Change each
12,000
miles
.
Disassemble to lubricate each
12,000
miles
Each
2,000
miles
Each
2,000
miles
Each
2,000
miles
Each
2,000
miles
Each
2,000
miles
At
each breaker point replacement
/Each
2,000
miles
\Each
6,000
miles
Change each
2,000
miles
or 60 days
Change each
6,000
miles
or 60 days
QUANTITY
U.S.
Imperial Metric
As
required
As
required
As
required
As
required
As
required
As
required
As
required
2H
Pts. 2 pts. 1,2 ltrs.
6 H pts. 5
M
pts. 3,2 ltrs.
3Mpti«
3 pts. 1,5 ltrs. 2
M
pts. 2 pts. 1,2 ltrs.
2
Yi
pts. 2 pts. 1,2 ltrs.
As
required
Several
Drops
Several
Drops
One
Drop
One
Drop
2 c.c.
As
required
1 H pts. 1 pt. 0,6 ltrs.
4 qt. m 314 qt. 3,8 ltrs.
4 qt.
11
3 34 qt. 3,8 ltrs.
LUBRICANT
TYPE
Chassis
Lubricant
Chassis
Lubricant
Chassis
Lubricant
GL3
MIL-L-2105-B
Wheel
Bearing
Lubricant
Wheel
Bearing
Lubricant
GL4
GL4 GL4
MIL-L-2105-B
MIL-L-2105-Bttt
Graphite
Grease
Engine
Oil
Engine
Oil
Engine
Oil
Engine
Oil
Cam
Lubricant
Cam
Lubricant
Engine
Oil
Engine
Oil
Engine
Oil
GRADE
No. 1 No.
1
No. 1 No. 1
No. 1
SAE-140
No. 1
SAE-140
SAE-80
No. 2
SAE-
No. 80
2
No. 2 No. 2
SAE-90
SAE
80
SAE-90
SAE
80
SAE-90
SAE
80
SAE-80
SAE-80
SAE
SAE
80
80
Light
Same as
engine
Same as
engine
Same as
engine
Same as
engine
SAE-40
or 50
SAE-20
Above 90
°F.
use SAE 30 or 10W-30
Not lower than
32°F.
[0°C.|
use SAE 20W or SAE 10W-30 Between
-f-10°F.
and 90
8F.
use SAE 20W or 10W-30 Between
-10°F.
and
+10°F.
use SAE 10W or 10W-20 Between
32eF.
[0°C.]
and 0°F.
l-17°Cl
use SAE 10W or SAE 10W-30
*4-Speed transmission and transfer case require separate lubrication of each unit.
tttFor
Powr-Lok
and
Trac-Lok
differential use only 'Jeep* Differential Oil,
Part
No. 94557.
SI
When filter is changed at the same time, add one quart.
®
Do not mix lithium and sodium base lubricants. Use lithium base lubricant as specified Below
-10°F.
use SAE 5W or 5W-20
Below 0°F. [-17°C.J
use SAE 5W or SAE 5W-20 8
Page 9 of 376
*Jeep?
UNIVERSAL
SERIES
SERVICE
MANUAL
FIG.
B-2—LUBRICATION
CHART
—
2-WHEEL
DRIVE
VEHICLES
CHART
NO
ITEM
TO BE
LUBRICATED
FREQUENCY
1000 miles = 1.600 km.
QUANTITY
U.S.
Imperial Metric
LUBRICANT
TYPE
Summer I Winter
Chassis
Bearings.....
Universal
Joints...... Steering
Gear
Housing
Rear
Wheel Bearings fx
Front
Wheel
Bearings®
Transmission
Differential
Hand
Brake Control Handle Cable
Hand
Brake Control
Cable
Rear
Generator — F4
Speedometer
Cable....
Distributor — F4
Oiler
Wick
Pivot
Cam
Distributor Cam — V6.
Air
Cleaner — F4
—
V6.
....
Engine
— F4
Engine
— V6
Each
2,000
miles
Each
2,000
miles
Check
each
2,000
miles
With
Lube Fittings;
Sparingly each
2.000
miles
Without Lube Fittings: Disassemble to Lubricate
each
12,000
miles
Disassemble to lubricate each
12,000
miles
Check
each
2,000
miles
Change each
20,000
miles
Check
each
2,000
miles Change each
12,000
miles
Each
12,000
miles
Each
12,000
miles
Each
2,000
miles Disassemble to lubricate each
12,000
miles
Each
2,000
miles
Each
2,000
miles
Each
2,000
miles
Each
2,000
miles
At
each breaker point replacement
Each
2,000
miles
Each
6,000
miles
Change each
2,000
miles or 60 days Change each
6.000
miles or 60 days
As
required
As
required
As
required
As
required
As
required
1 XA pts. 114 pts. 0,7 ltrs. 2 pts. 1 % pts. 0,9 ltrs.
As
required
As
required
2 to 4 Drops
As
required
Several
Drops One Drop
One Drop
2 c.c.
As
required
1
M
pts. 1 pt. 0,6 ltrs.
4 qt.** 3 H qts. 3,8 ltrs. 4 qt.** 3
}A
qts. 3,8 ltrs.
Chassis
Lubricant
Chassis
Lubricant
MIL-L-2105-B
Wheel Bearing Lubricant
Wheel Bearing Lubricant
GL4
MIL-L-2105-B*
Graphite
Grease
Graphite
Grease
Engine
Oil
Graphite
Grease
Engine
Oil
Engine
Oil
Engine
Oil
Cam
Lubricant
Cam
Lubricant
Engine
Oil
Engine
Oil
Engine
Oil No. 1 No. 1
No. 1 No. 1
SAE-80 SAE-80
No. 2 No. 2
No. 2 No. 2
SAE-90 SAE-80
SAE-80 SAE-80
Medium Medium
Medium Medium Same as
engine
Light
Same as
engine
Same as
engine
Same as
engine
SAE-40
or 50
®
Above
90°F.
Between -f
10°F.
and
90°F.
Between
-10°F.
and
-fl0°F.
Below
-10°F.
use SAE 30 or 10W-30 use SAE 20W or 10W-30 use SAE 10W or 10W-20 use SAE 5W or 5W-20
BE
St
Not lower than
32°F.
[08C] Between
32°F.
10°C] and 0°F.
l-17°CI
Below 0°F. [-17°C] use SAE 20W or SAE 10W-30 use SAE 10W or SAE 10W-30 use SAE 5W or SAE 5W-20
•For
Powr-Lok and
Trac-Lok
differential use only 'Jeep' Differential Oil, Part No.
94557.
**When oil filter is changed at the same time, add one quart {one
ltr.].
(x)Do not mix lithium and sodium
base
lubricants. Use lithium
base
lubricants as specified. 9
Page 12 of 376
B
LUBRICATION B-3.
SERVICE
MAINTENANCE
SCHEDULE
Perform
the following operations at the mileage shown. Two thousand miles equals
3,200
km.
SERVICE
MAINTENANCE
SCHEDULE
OPERATION
VEHICLE
^ n>
MILEAGE
IN
THOUSANDS
6 8 10 12 24 30
Check Wheel Nut Torque*
Check
Fluid
Level
in Battery X Check
Fluid
Level
in Brake Master Cylinder0. X
Service
Cooling
System X Service Tires X
Lubricate
Distributor
Cam Lubricator (F4-134) X
Lubricate
Steering Linkage X
Lubricate
Propeller Shaft Universal Joints X
Lubricate
Propeller Shaft
Slip
Joints ; X
Lubricate
Tie Rod and Drag
Link
Sockets................................... X Change Engine
Oil
and
Filter,
and Service Air Cleaner (F4 134 Engine)** X
Change Engine Oil and
Filter,
and Service Air Cleaner (V6-225 Engine)**....
Check Brake Operation and Pedal
Free
Play X Check
Clutch
Pedal
Free
Play. .... X
Check all
V-Belt
Tensions X
Check Exhaust Emission System
(If
so equipped)*** \ X
Service Positive
Crankcase
Vent
Valve
and Breather . .' X
Road Test
Including
a Check of all Instrument
Lights
and Controls X Tune-up Engine
Check Operation of
Manifold
Heat
Control
Valve
Clean
Exterior of Radiator
Align
Headlights • Check Brake
Linings
,
Check Exhaust System for Leaks Replace Canister Air
Filter
(F. E. E. C. System)
Check
Axle
U-Bolt
Torque. Check Lubricaunt
Level
of Front
Axle
Universal Joints
Check Shock Absorber Mountings and Bushings Check Front and
Rear
Spring Bushings
Lubricate
Distributor
(V6-225).
Replace Spark, Plugs
Check Charging and Starting Circuits
Lubricate
Tailgate Latch, Supports and Hinges.
Lubricate
Door and
Hood
Hinge Pivots ;
Lubricate
Glove Compartment Door Latch
Lubricate
Heater Controls •
Lubricate
Windshield
Wiper and Washer Controls
Clean,
Repack and
Adjust
Wheel Bearings
Change Transmission and Transfer Lubricant. .
Replace
Dry-Type
Air Cleaner • Check Lubricant
Level
of
Differential
Lubricate
Transfer
Case
Shift
LeArer
Control
C«se.
. , . . . . . . . .
Continuing
each
2,000 miles
Continuing
each
6,000 miles
Continuing
each
24,000 miles
X
Continuing
each
30,000 miles
•Check after the
first
200 miles [320
km.
J
of operation.
If
wheel or wheels are changed for any
reason,
have
wheel nut torque rechecked after an additional two hundred miles of operation
••Service mileage shown or every 60 days, whichever occurs
first.
•••Maintenance check on emission system must be performed per
information
in this manual. "See text for brakes.
"Nj
^Miles
2,000
6,000
12,000
18,000
24,000
30,000
Kilometers
3,200
9,600
19,200
28,800
38,400 48,000
B-9.
Engine Oil
For
maximum
engine
protection under all driving conditions encountered during the recommended
oil
change intervals, it is necessary to use only
"MS"
certified
sequence-tested
oils. The term
"MS"
must appear on the oil container singly or
in
conjunction with other designations. "MS" des
ignated oils are heavy-duty detergent oils that are
formulated to withstand all service conditions in
modern powerplants. Engine oils designated only
as
"ML"
and/or
"MM"
are not recommended and should not be used except in an emergency when
"MS"
oil is not available. Certified
sequence-tested
engine
oils are described on their containers by
such
phrases as:
meets,
exceeds,
excels, or has
proven superior in the
test
requirements,
test
sequences, MS Service
tests,
standards, and service
requirements,
of automotive manufacturers, auto
makers,
or car manufacturers for MS service or
Service
MS.
It
may be necessary to change
engine
oil more
frequently than normally recommended, depending upon the type and quality of oil used, the severity
of operation conditions, if the
engine
is used for
short
periods in cold weather, or if the
engine
is allowed to idle for excessive periods.
Always
drain
the crankcase while the
engine
is hot since
dirt
and contaminants are then more
likely
to be held in suspension and therefore
will
drain
out more completely.
Drain
the crankcase as follows:
a.
Position the
drain
receptacle under the
drain
plug.
b.
Remove the
drain
plug using the correct size
wrench.
Be careful of hot oil.
c.
Carefully
clean the
drain
plug. Inspect and
replace
the gasket, if deteriorated.
d.
When the oil has drained, replace and tighten
the crankcase
drain
plug. 12
Page 16 of 376
B
LUBRICATION
Note:
Hard
shifting of the transmission gear in
cold weather is a positive indication that the
lubri
cant
is of the wrong viscosity or of poor quality
which
allows it to congeal.
B-38.
Optional
4-Speed
Transmission
and
Transfer Case
The
four-speed transmission and transfer case re
quire
separate lubrication for each unit as
they
have no cross-over oil passage. At each transmission
service check, the
fill
plugs of
both
four-speed
transmission
and transfer case should be pulled
and
the lubricant refilled to level if necessary.
B-39.
Transfer
Case
Linkage
The
transfer case shift linkage should be lubricated
periodically.
All
bearing surfaces that are assembled
with
studs and cotter pins should be disassembled, cleaned, and coated with a
good
waterproof grease.
The
bearing surfaces that cannot be disassembled
should be lubricated with a lubricant that
will
penetrate the bearing
area.
These bearings include
the two on the cross shaft assembly and the
threaded stud.
The
type
of penetrating lubricant recommended is
DuPont
"PM 7", No. 2911, or its equivalent.
B-40.
Brake Master Cylinder
Clean
the top of the
fill
cap and also the housing
area
around it. Remove the cap and observe the
fluid
level. It should be
half
an inch
below
the top
of the fill-hole. If not, add brake fluid to
half
inch
[1,3 cm.]
below
the top of the fill-hole. Use
only heavy-duty brake fluid conforming to speci
fication
SAE-J-1703.
Be sure to handle the brake
fluid
in clean dispensers and containers that
will
not introduce even the
slightest
amount of other
liquids
or foreign particles. Replace and tighten
the
fill
cap.
B-41.
Adjust Brakes
Refer
to Section P.
B-42.
Brake Linings
Refer
to Section P.
B-43.
Adjust Clutch
Refer
to Section I.
B-44.
Clutch Cross Shaft (Lever Type)
Lubricate
the clutch cross shaft in accordance with
specifications given in the
Lubrication
chart: see
Item
1. Chassis Bearings.
B-45.
Tie Rod and Drag
Link
Sockets
The
tie rod and drag
link
sockets
are equipped
with
lubrication
fittings
and should be lubricated
per
specifications given in the
Lubrication
chart: see Item 1. Chassis Bearings.
B-46.
Front
and
Rear Spring
Bushings
The
condition of the spring bushings is indicated
by the alignment of the spring pivot and spring
shackle
bolts.
Check
the alignment of
these
bolts,
and
check that nuts are
tightened
securely.
B-47.
Spring
Shackles
Rubber
bushings are provided on the spring
shackles.
These rubber bushings have no lubrication
fitting and it is very important that
they
never be lubricated.
B-48.
Shock Absorbers
Visually
check for broken mounts or bolts, worn
or
missing bushings on the shock absorbers. Refer
to Section S.
B-49.
Front and
Rear
Axle
U-Bolts
Torque
the front and
rear
axle U-bolts. Refer to Section S.
B-50. Front
and
Rear
Axle
Differentials
—
Lubricant Levels
The
lubricant
level of all front and
rear
differentials should be at the level of the fill-hole.
B-51.
Front and
Rear
Axle
Differentials
—
Changing
Lubricant
B-52.
Conventional Differentials
To
remove the lubricant from the front or
rear
differential,
it is necessary to remove the housing cover. Let the lubricant
drain
out, and then flush
the differential with a flushing oil or light
engine
oil
to clean out the housing
(except
Powr-Lok
or
Trac-Lok
Differentials). Do not use water, steam,
kerosene, or
gasoline
for flushing.
Reinstall
the housing cover, replacing the gasket whenever necessary, torquing the cover
bolts
to 15 to 25 lb-ft. [2,1 a 3,4 kg-m.].
Remove the filler plug, and
refill
the differential
housing as specified in the
Lubrication
Specifica
tions.
B-53.
Powr-Lok
or
Trac-Lok Differential
Some vehicles may be equipped with the
Powr-Lok
or
Trac-Lok
Differential as optional equipment.
Special
lubricant and ordinary multipurpose gear
lubricants
must
not be used. Use only
'Jeep*
Differ
ential
Oil,
Part
No. 94557.
Powr-Lok
or
Trac-Lok
differentials may be cleaned
only by disassembling the unit and wiping with
clean
rags. Do not flush the unit. Refer to Sec
tion N.
B-54.
Front Axle Universal Joint
—
Lube
Check
the level of the front axle universal joint
lubricant
at each front wheel by removing the
fill-hole plug. The lubricant should be level with
the fill-hole. If required, add lubricant as specified
in
Lubrication
Specifications.
B-55.
Front
Axle
Universal
Joint
— Service
On
all 4-wheel drive vehicles the front axle
uni
versal
joint should be serviced by removing the shaft and thoroughly cleaning the universal joints
and
housing. For the correct procedures, refer to
Section M. 16
Page 18 of 376
B
LUBRICATION
B-72.
Powr-Lok
or Trac-Lok
Differential
Refer
to Par. B-53.
B-73.
PARTS
REQUIRING
NO
LUBRICATION
B-74.
Water Pump Bearing,
Clutch
Release
Bearing
The
water pump and clutch release bearings are
prelubricated
for life when manufactured and cannot be relubricated.
B-7S.
Starter
Motor
Bearings
The
starting motor bearings are lubricated at assembly to last
between
normal rebuild periods.
B-76.
Alternator Bearings
The
alternator bearings are lubricated at assembly
and
require no further lubrication.
B-77.
Springs
The
vehicle springs should not be lubricated. At assembly the leaves are coated with a long-lasting
special
lubricant which is designed to last the life
of the springs. Spraying with the usual mixture of
oil
and kerosene has a tendency to wash this
lubri
cant
from
between
the leaves, making it necessary
to relubricate
often
to eliminate squeaking.
B-78.
Shock Absorbers
Hydraulic
direct-action shock absorbers are per manently sealed and require no periodic
lubrica
tion service. Shock absorber mounting bushings
are
not to be lubricated.
B-79.
LUBRICATION
REQUIREMENTS
FOR
OFF-HIGHWAY
OPERATION
Adequate lubrication
becomes
increasingly im portant when vehicles are used in off-highway
operation. Under
these
conditions all operating
parts
of both the
engine
and chassis are subjected
to unusual pressures. At the same time such operation is usually under abnormal dust and
dirt
conditions making additional precautions neces
sary.
The importance of correct lubrication for
the conditions of operation cannot be overestimated.
B-80.
Engine
Oil
It
is important, that the oil in a new or rebuilt
engine
be changed after the first
eight
or ten hours
of operation, and for heavy, dusty work, every 50
hours
thereafter. Watch the condition of the oil closely and change it immediately if it appears to
be contaminated.
i-Il.
Engine
Oil
Filter
Replace
the oil filter at the end of the first 100
hours
of service. Under extreme operating con ditions, more frequent replacement may be re
quired.
The condition of the oil is a reliable
indicator
of the condition of the filter element.
If
the oil
becomes
discolored and shows evidence
of contamination, change the filter without delay.
(Refer
to
Par.
B-10, B-ll for the correct procedure
for replacing the oil filter.)
B-82.
Air Cleaner
Care
of the air cleaner is extremely vital to the life of the engine. Pay particular attention to the
amount of dust and
dirt
in the air taken into the
engine
through the air cleaner. When dust is not
noticeable in the air, service the air cleaner each scheduled maintenance period. Whenever the air is
noticeably dusty (for example when the vehicle is
driven
on secondary roads or through fields) then
service the air cleaner more frequently. Under extreme continually dusty and dirty conditions
where the vehicle operates in clouds of dust and
dirt,
service the air cleaner daily. (Refer to Par.
B-24
thru
B-26 for service procedures.)
B-83.
Chassis
Lubrication
The
period of lubrication depends entirely upon the type of work being done. Using the specified
interval
given in the Service Maintenance Schedule as a guide, lubricate at safe intervals required for
the particular type of operation. Under extremely
dusty conditions lubricate
these
points daily. Be
sure
to force enough lubricant into each fitting to force out the old lubricant which might be con
taminated with grit and which would cause
rapid
wear
if allowed to remain.
Do not place lubricant on the various
ball
and socket joints or pivot points of the lift linkage as
dirt
will
accumulate to form an abrasive mix
ture.
It is
best
to simply wipe
these
parts clean
with
a cloth.
B-84.
Front
Axle
Shaft Universal Joints
For
off-highway use remove the universal joints twice yearly, thoroughly clean both the housings
and
joints with a suitable solvent, and
refill
the
housings to the
fill
plug opening levels with the
correct
lubricant as given in the
Lubrication
Specifications.
B-85.
Transmission and Transfer
Case
The
combined capacity of the two housings is
small
for economy, making it important that the
lubricant
be changed at regular intervals. For off-highway use
drain
both housings every 300
hours
of operation and
refill
to the
fill
plug opening
levels. Refer to B-35 through B-37 when changing
lubricant.
B-86.
Front and
Rear
Axle
Differentials
Because of the higher pressure developed in the
axle assemblies with heavy duty operation,
drain,
flush,
and
refill
the differential assemblies each 300 hours of operation. Use only flushing oil or light
engine
oil to clean out the housings (except
Powr-Lok
and
Trac-Lok
differentials). Refer to
Par.
B-52 and B-53 for draining and flushing
differential.
18
Page 277 of 376
'Jeep*
UNIVERSAL SERIES SERVICE
MANUAL
m
FRONT fiXLE
Contents
SUBJECT
PAR.
GENERAL.
M-l
4-WHEEL DRIVE FRONT
AXLE.
M-2
Maintenance
Requirements M-3
FRONT AXLE REMOVAL
.M-4
AXLE
SHAFT REMOVAL
M-5
REMOVING
AND
OVERHAULING
DIFFERENTIAL
.M-6
AXLE
SHAFT UNIVERSAL JOINT SERVICE
M-7
STEERING
KNUCKLE SERVICE
M-8
Replacing
Steering
Knuckle
Oil Seal M-10
M-1. GENERAL
The
front axle for all 'Jeep* Universal models,
which
have 4-wheel drive, is described in
Par.
M-2.
The
front axle for all DJ-5, DJ-6 models, which
have 2-wheel drive, is described in
Par.
M-l5.
M-2. 4-WHEEL-DRIVE FRONT AXLE
The
front axle is a live driving unit with hypoid
type
driving gears and spherical steering knuckles mounted m pivot pins which ride on tapered roller bearings for
ease
of steering. The drive is of the
full
floating
type
through axle shafts built integrally
with
cardan cross universal joints which revolve in the steering knuckles. The steering knuckle tie rod
arm
is made integrally with the knuckle. The
knuckles
are connected by a divided tie rod to a steering bell
crank.
A steering connecting rod con
nects
the bell
crank
to the steering gear arm. The
divided
tie rod is adjustable and the
toe-in
of each
front wheel is adjusted independently.
Camber
and
SUBJECT
PAR.
REASSEMBLY
AND
BEARING PRELOAD
M-9
AXLE
SHAFT INSTALLATION
M-ll
FRONT AXLE INSTALLATION........
.M-l2
Turning
Angle Adjustment . .M-14
Steering
Tie Rod and
Beilcrank
M-l3
2-WHEEL DRIVE FRONT AXLE
M-15
Removal
of Solid
Front
Axle M-l6
Steering
Knuckle
Service M-l7
Steering
Knuckle
Pin Replacement. ......M-l8
SERVICE
DIAGNOSIS
M-19
AXLE
SPECIFICATIONS.
M-20
caster
of the front
wheels
is preset.
Camber
cannot
be altered but caster can be adjusted by installing
caster
shims
between
the axle pad and the springs.
For
information on the steering
geometry
see
"Steering
Section."
Service
procedures given in this section include
the removal, installation, disassembly and assembly
of the Model
27AF
front axle assembly, the axle
shafts, steering knuckles, and
universal
joints.
Note:
All service replacement axle assemblies are
shipped from the factory without lubricant in the
differential.
Lubricant
must be added; use grade
and
quantity as specified in the lubrication chart (Section B).
M-3.
Maintenance Requirements
A
spring-loaded breather is located on the top of
the differential housing.
Each
time the differential
lubricant
is checked, the breather should be
Page 278 of 376
M
FRONT
AXLE
1— Nut
2—
Lock
Washer
3—
Bearing
Lock
Washer
4—
Wheel
Bearing Cup 5—
Cone
and Rollers
6—
Oil
Seal 7— Spindle
8— Spindle Bushing
9—
Filler
Plug
10—
Right
Knuckle and Arm
11— Shims
12— Pivot Pin
13—
Lock
Washer
14—
Cap
Screw
15— Nut
16—
Washer
17—
Universal
Joint Yoke
18—
Oil
Seal
19—
Oil
Slinger
FIG.
M-2—FRONT
AXLE
20—
Cone
and Rollers
21—
Bearing
Cup
22—
Right
Axle Shaft with Universal Joint
23—
Knuckle
Oil Seal Retainer
24— Housing Breather 25—
Front
Axle Housing
26—
Axle
Shaft with Universal Joint
27—
Oil
Seal
28—
Axle
Shaft Guide
29—
Shim
Pack
30—
Bearing
Cup
31—
Cone
and Rollers
32—
Ring
Gear
and Pinion
33—
Thrust
Washer
34—
Thrust
Washer
35—
Differential
Gears
36— Housing Cover Gasket
37— Housing Cover
38—
Fill
Plug 39—
Screw
and
Lock
Washer
40—
Bearing
Cup
41—
Cone
and Rollers
42— Shims
43—
Lock
Pin
44—
Pinion
Shaft
45—
Differential
Case
47— Bolts
48— Nut
49—
Oil
Seal and Backing Ring
50—
Thrust
Washer
51— Snap Ring
52— Stop Bolt
53— Nut 54—
Bearing
Cup
55—
Cone
and Rollers
56—
Gasket
checked, making sure it is clean and open.
The
front wheel bearings should be checked every
12,000
miles. Refer to Section Q. Front wheel toe-
in
is adjustable by lengthening or shortening the
tie rod. However, standard caster and camber of
the front
wheels
are built
into
the axle. Wheel
caster can be adjusted by placing tapered shim
plates or
wedges
between
the springs and spring
seats
welded to the axle housing. Steering
geometry
and
front wheel adjustments are discussed in Sec tion O.
The
axle housing should be checked periodically
for weld cracks and/or other damage that may cause misalignment of the front
wheels
or
loss
of lubricant. The spring clips (U-bolts) should be
inspected and torqued every
12,000
miles. Torque (spring clip) nuts 45 to 50 lb-ft. [6,2 a 6,9 kg-m.].
M-4. FRONT
AXLE
REMOVAL
a.
Raise front end of vehicle
arid
safely support the frame by placing stands under the frame at
the rear of the front spring rear hangers.
b. Place
jack
under front axle housing and relieve
axle
weight
from the springs.
c. Disconnect shock absorbers from spring clip plates.
FIG.
M-3—HUB
CAP
PULLER
d.
Disconnect steering link from tie rod socket-
joint assembly.
e. Disconnect hydraulic brake
hoses
from front
brake
lines. Disconnect
hoses
from frame brackets. 278
Page 279 of 376
'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
m f. Disconnect propeller shaft from the differential
companion flange.
g.
Disconnect both front springs from front spring hangers.
h.
Remove spring clip and spring clip plates secur
ing axle to front springs.
i.
Remove front
wheels
from axle assembly.
j.
Lower
jack
slightly and
pull
axle forward from
under
vehicle.
M-5.
FRONT AXLE SHAFT REMOVAL
Refer
to Fig. M-2.
The
following procedure applies to either right or
left
front axle shaft.
Note:
Axle shafts can be removed without remov
ing the axle housing from the vehicle. Use the fol
lowing procedure.
First
raise and support front end
of vehicle, and remove front wheels.
a.
Remove drive
flange
snap
ring.
b-
Remove the hub cap with a puller as shown in
Fig.
M-3.
c.
Remove the axle shaft driving
flange
bolts.
d.
Apply the
foot
brakes and remove the axle shaft
flange
with puller W-163 as illustrated in
Fig.
M-4.
FIG.
M-4—AXLE
SHAFT
DRIVE
FLANGE
PULLER
1—Too!
W-163
e.
Release the locking lip on the lockwasher and
remove the outer nut, lockwasher, adjusting nut
and
bearing lockwasher. Use wrench W-144, Fig.
M-5,
for removal of the nut.
f- Remove the wheel hub and drum assembly
with
the bearings. Be careful not to damage the
oil
seal.
FIG.
M-5—WHEEL
BEARING
NUT
WRENCH
1—Tool
W-144
g.
Remove the hydraulic brake
tube
and the
brake
backing plate screws.
h.
Remove the spindle.
i.
Remove the axle shaft and universal joint as
sembly.
M-6.
Removing
and
Overhauling Differential
Adjustment
and overhaul of the front axle differen
tial
assembly is the same as that of a
full
floating
type
rear
axle. Information covering dismantling
and
assembling of this
type
differential is contained
in
Section N.
NOTE:
All service replacement axle assemblies
are
shipped from the factory without lubricant in
the differential.
Lubricant
must be added to the
differential
before
the axles are installed in vehicles.
Use
the grade and quantity of lubricant specified
in
the lubrication section.
After
the axle has
been
installed in the vehicle,
check
to be sure the lubricant level in the dffer-
ential
is level with the
fill
plug opening.
M-7.
AXLE SHAFT UNIVERSAL JOINT SERVICE
Refer
to Fig. M-6 and M-7.
After
the axle shaft and universal joint assembly have
been
removed, the
Cardan
cross universal
joint
can be disassembled and inspected as follows:
a.
Remove the snap rings from the bearing cup assemblies.
b.
Press on the end of one bearing cup assembly
until
the
opposite
bearing is pushed from the yoke
arm.
Turn
the yoke over and press the first bear ing back out of that
arm
by pressing on the
exposed
end of the
journal
shaft. To avoid damaging the 279
Page 281 of 376
'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL
M
If
the joint binds when assembled, tap the yoke
lightly to relieve any pressure on the bearings at the end of the
journal.
M-8-
Steering
Knuckle
Service
The
steering knuckle pins pivot on tapered roller
bearings. Replacement of
these
bearings requires
removal
of the hub and brake drum assembly,
wheel bearings, axle shaft, spindle, steering tie rod,
and
steering knuckle. Disassemble the steering
knuckle
as follows:
Remove the
eight
screws which hold the oil seal
retainer
in place. Remove the four screws holding
the lower pivot pin bearing cap. Remove the four screws holding the upper bearing cap in place. Re
move
the bearing cap. The steering knuckle can
now be removed from the axle. Wash all parts in cleaning solvent. Replace any damaged or worn
parts.
Inspect the bearing and races for scores,
cracks,
or chips. Should the bearing cups be damaged,
they
may be removed and installed with
Special
Driver
W-138, as shown in Fig. M-9.
M-9.
Reassemble
and
Bearing Preload
Reverse
the procedure of Par. M-8 to reassemble
the unit. When reinstalling the steering knuckle, sufficient shims must be installed under the top
bearing
cap to obtain correct preload on the bear
ing.
Shims are available in
these
thicknesses: .003"
[0,076
mm.] .010"
[0,254
mm.] 005"
[0,127
mm.] .030"
[0,762
mm.]
Install
one each of the
above
shims at the top only.
Install
the bearing caps, lockwashers, and screws,
and
tighten securely.
Check
the preload on the bearings by hooking a
spring
scale, Tool C-690, in the
hole
in the knuckle
arm
for the tie rod socket.
Take
the scale reading when the knuckle has just started its
sweep.
The
kingpin bearing preload should be 12 to 16 lb. [5,43 a 7,24 kg.] with the oil seal removed. Remove
or
add shims to obtain a preload within
these
limits.
FIG.
M-9—SPINDLE
PIN
BEARING
CUP
DRIVER
1—Tool
W-138
FIG.
M-10—TURNING
ANGLE
STOP
SCREW
1—Stop
Screw
M-10.
Replacing Steering
Knuckle
Oil Seal
Remove the old steering knuckle oil seal by remov ing the
eight
screws which hold it in place.
Earlier
production vehicles are equipped with seals con sisting of two oil seal halves.
Later
production vehicles are equipped with oil seal assemblies con
sisting of a split oil seal and backing ring assembly,
an
oil seal felt, and two seal retainer plate halves.
Examine
the spherical surface of the axle for scores or scratches which could damage the seal.
Smooth any roughness with emery cloth. Before installing the oil seal felt, make a diagonal
cut across the top side of the
felt
so that it may be
slipped over the axle.
Install
the oil seal assembly
in
the
sequence
given above, making sure the
backing
ring (of the oil seal and backing ring as
sembly) is toward the wheel.
After
driving in wet, freezing weather swing the
front
wheels
from right to
left
to remove moisture
adhering
to the oil seal and the spherical surface of
the axle housing.
This
will
prevent freezing with
resulting
damage to the seals. Should the vehicle be
stored for any period of time, coat
these
surfaces
with
light grease to prevent rusting.
M-11.
AXLE
SHAFT
INSTALLATION
Refer
to Fig. M-2.
Installation
of the front right and
left
axle shaft
is the same and is given in the following
paragraphs.
a.
Clean
all parts of
dirt
and foreign matter.
b.
Enter
universal joint and axle shaft assembly
in
the axle housing, taking care not to knock out
the inner oil seal.
Enter
the splined end of the
axle shaft
into
the differential and push
into
place. 281