brake pads JEEP DJ 1953 Service Manual

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

M
FIG.
M-12—FRONT
AXLE—EARLY
MODEL
DJ-5, DJ-6
1— Outer Bearing Cone and Rollers
2— Outer Bearing Race
3—
Inner
Bearing Cone and Rollers
4—
Inner
Bearing Race 5— -Wheel Brake Cylinder
6— Bleeder Screw 7— Upper Expansion Plug
8— Steering Knuckle Pin
9— Steering Knuckle Bushing
10—
Lubrication
Fitting Opening
11—
Front
Axle I-Beam 12— Steering Knuckle Pin Bearing 13—
Brake
Backing Plate
14—
Brake
Drum 15—
Brake
Shoe

16— Wheel Hub Bolt
17— Spindle
18—
Front
Wheel Hub
19— Spindle Nut
d. Disconnect the shock absorbers at the axle

mounting
pads.
e. Disconnect the brake hydraulic
hoses
at the
connections
between
front brake
lines
and
flexible
hoses.

f. Support the axle assembly on a jack, ready for removal. g. On
vehicles
with the springs slung over the axle,

remove
the
nuts
from the spring to axle U-bolt clips,

remove
the spring clip
plates,
and slide the axle as­

sembly
from underneath the vehicle.

On
vehicles
with the springs slung under the axle,
remove
the
nuts
from the spring clips and
remove

the spring clip
plates.
Then
disconnect
the spring

FIG.
M-13—FRONT
AXLE, LATE
MODEL
DJ-5, DJ-6
1— Steering Knuckle
2— Steering Knuckle Bushing
3—
Key

4— Steering Arm
5—
Lock
Spring
6—
Oil
Seal Retainer 7—
Oil
Seal
8—
Tapered
Pin
9— Dust Cover
10— Nut
11— Cotter Pin
12— Tie
Rod
13— Axle Tube 14— Plug
15— Steering Knuckle Pin
16—
Shim

17—
Thrust
Bearing
18— Bolt
19— Nut 20— Nut
21— Cotter Pin 11660
283

m

REAR AXLE
c. Attach the brake line
hose
at tee fitting on top
of housing.

d.
Attach parking brake cables at rear of brake
backing plate. DJ
models
only.
e. Connect the shock absorbers at the axle mount­
ing pads.
f. Connect the propeller shaft at the rear universal
joint.
g. Adjust and bleed brakes. (See Section P).

h.
Install
wheels
and lower vehicle to floor.
i.
Check parking brake as described in Section P.

j.
Fill
the axle housing with the proper lubricant.

For
correct lubricant refer to the
Lubrication
Chart.

N-34.
TROUBLE
SHOOTING

The
following problems can be present with either the conventional differential,
Powr-Lok
or
Trac-
Lok
differential.
N-35. Backlash

Excessive
backlash in the vehicle drive line may be the results of
excessive
backlash in the trans­
mission, propeller shaft spline, universal joint, ring gear and pinion, the axle shaft spline, or the dif­
ferential.
Excessive
backlash in the differential may be meas­

ured
as follows:
a.
Jack
up one rear wheel.
b. Put the transmission in gear.
c. Measure the travel of the jacked-up wheel on
a
10"
[25,40
cm.] radius from the wheel center.

This
total
movement
should not
exceed
IVi" [3,17 cm.] in a new unit. In order to restrict the

backlash
to the axles only, make sure that the
yoke of the propeller shaft
does
not
move
during
the check.

d.
If all causes of backlash mentioned
above
have

been
eliminated with the exception of the differen­

tial
and that still
exceeds
the maximum allowable
movement, overhaul the differential.
N-36.
Rear
Wheel
Noise

Looseness of the rear axle shaft nut on semifloat- ing tapered rear axles may produce a clicking or
creaking
noise.
This
noise
can usually be
stopped

by torquing the wheel hub nut 150 to 175 lb-ft. [20,7 a 24,2 kg-m.]. If the condition has continued
for
some
time, slight wear may have resulted allow­
ing the
noise
to persist. In this case, coat the hub,
key, and keyway on tapered axle shafts with white
lead and torque the nut as specified. If the
noise
persists after this treatment, replace the worn parts.

N-37.
SERVICE DIAGNOSIS

SYMPTOMS

Axle
Noisy on Pull and
Coast
Excessive
Back
Lash
Bevel
Gear
and Pinion. . . . . Adjust

End
Play Pinion Shaft Adjust

Worn
Pinion Shaft Bearing Adjust
Pinion
Set too Deep in Bevel
Gear
too Tight..... Adjust

Wrong
Lubricant
Being Used
(Powr-Lok
or
Trac-Lok
Differential) . Replace

Axle
Noisy on
Pull
Pinion
and Bevel
Gear
Improperly Adjusted Adjust

Pinion
Bearings Rough....................... Adjust

Pinion
Bearings Loose Adjust

Axle
Noisy on Coast
Excessive
Back
Lash
in Bevel
Gear
and Pinion. . . Adjust

End
Play in Pinion Shaft. . Adjust

Improper
Tooth Contact.
....................
Adjust
Rough Bearings Replace

Back
Lash
Worn
Differential Pinion
Gear
Washers Adjust
Excessive
Back
Lash
in Bevel
Gear
and Pinion. . . Adjust

Worn
Universal Joints Replace
PROBABLE REMEDY

310

'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

The
purpose of caster Fig. O-S, is to provide steer­
ing stability which
will
keep the front wheels in the
straight
ahead position and also assist in straighten­
ing up the wheels when coming out of a
turn.
Caster
of the front wheels is preset. If the angle of

caster,
when accurately measured, is found to be

incorrect,
correct it to the specification given at
the end of this section by either installing new

parts
or installing caster shims
between
the axle

pad
and the springs.

If
the camber and toe-in are correct and it is known
the the axle is not twisted, a satisfactory check

may
be made by testing the vehicle on the road.
Before road testing, make sure all tires are properly

inflated,
being particularly careful that both front
tires are inflated to exactly the same pressure.
If
vehicle turns easily to either side but is
hard
to
straighten out, insufficient caster for easy handling of vehicle is indicated. If correction is necessary, it

can
usually be accomplished by installing shims

between
the springs and axle pads to secure the
desired
result.
0-11-
Front
Wheel
Turning
Angle
When
the front wheels are turned, the inside wheel
on the
turn
travels in a smaller circle than the out­side wheel, therefore, it is necessary for the wheels
to toe out to prevent the tire on the inside wheel

frOm
being scuffed sideways.
This
angle for toe out
on turns is designed to permit both front wheels to

turn
on a common center by having the ends of the
steering
knuckle
arms closer
together
than the king­

pins.

To
avoid possible damage to the universal joints
on the front axles of 4-wheel drive vehicles, it is advisable to check the turning angle.
Wearing
away
of the upset
edge
on the spindle housing bolt which
10607

FIG.
0-6—TURNING
ANGLE
STOP
SCREW
1—Stop
Screw
contacts the
stop
screw
will
increase the turning
angle to the point where the universal joints may
be damaged.

The
Jeep Universal Series vehicles should have a

turning
angle of not more than 27^° both left and

right.
To adjust the
stop
screw, it is necessary to

loosen
the locknut holding the
stop
screw. When
the adjustment has been made, tighten the locknut
on the screw to prevent any movement. Refer to
Fig.
O 6.

The
left steering knuckle arm controls the relation­
ship of the front wheels on a left
turn
and the right
arm
controls the relation on a right
turn.

0-12. Steering
Knuckle
Arm

Should
a steering knuckle arm
become
bent, the

knuckle
housing must be replaced. It is not safe to
straighten the knuckle arm.
0-13.
Front
Wheel
Shimmy
Wheel
shimmy may be caused by various condi­
tions in the wheels, axle or steering system, or a
combination of
these
conditions. Outlined below

will
be found the usual corrections of this fault:

a.
Equalize
tire pressures and see that they are
according
to specifications.

b.
Check
the wheel bearings for
looseness.
Be sure
that the inner wheel bearing race is not too
loose
on the spindle.

c.
Remove both steering knuckles and carefully inspect the upper and lower king pin bearings.

Inspect
the bearing cups for evidence of brinelling,
pitting, or fretting. Any bearings that show the slightest imperfection must be
replaced.
Reassemble

and
lubricate the front axle and steering linkage,
installing
new steering knuckle oil seals if present
seals show any wear.

d.
With
full
weight on the front wheels and one

man
working the steering play with the steering
wheel, a second man should closely observe the steering bell
crank
for any rocking motion and the
double tie rod socket for any rocking motion or

looseness
at both points. Replace the complete bell
crank
assembly if it has even the slightest rocking motion. The same applies to the double tie rod
socket.
e.
Check
wheel run-out.
This
check should include
radial
run-out and wheel
looseness
on the hub.
f- Test wheel balance—check for blowout patches,
uniform
tire tread, vulcanized tires, mud on inside
of wheels, and tires creeping on the
rims.

g.
Try
switching front wheels and tires to the
rear,
criss-crossing
them in this operation.

h.
Check
for front
spring
sag. Also check for broken

spring
leaves, broken center
spring
bolt,
loose
spring

clips
(or tight clips), over-lubrication of spring leaves, spring shackle bracket
loose
on frame, and

loose
rear
spring shackle. Be sure that the shock
absorbers
are operating properly to eliminate bob­bing of the front end.

i.
Check
brakes to make sure that one
does
not

drag.

j.
Check
the steering assembly and steering con­ necting rod.
This
includes the up-and-down-play
of the steering worm shaft, end play of the cross 317

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

T
BODY

Contents

SUBJECT
PAR.

Brake
and
Clutch
Pedal Pads T-7

Canvas
Tops T-5
Care
of
Fabric
Tops. : T-6

Front
Seat Adjustment. . . T-8
Passenger Seat Safety
Catch
. .T-9
Windshield
T-2, T-3

Windshield
Glass and Weatherstrip T-4

T-1.
GENERAL
The
body
is of
all
steel construction with mountings
that provide a secure attachment to the frame.

All
major panels are of No. 18
gauge
steel. All
open

edges
of the panels are turned under, reinforced

and
flanged to provide strength. These panels are reinforced with
"U"
sections
and welded. All com­

ponent
panels are seamed and welded
together.
The
body
is insulated from the frame with insulator shims placed
between
the
body
and frame and
held in position by the
body
bolts.

The
instruments and controls, mounted on the
instrument panel are within clear view and easy
to reach.

Note:
A new floor pan cover plate has
been

released on late CJ-5 and CJ-6 models, that is
identified by a stamped oval-shaped bubble or
relief, located to the right of the accelerator treadle.
FIG.
T-l—MODEL CJ-3B BODY
1—
Rear
Passenger Seat 8—Front Passenger Seat

2—
Left
Side
Panel
9—Right Side
Panel

3—
Driver's
Seat 10—Spare Wheel
Bracket

4—
Rear
View
Mirror
11—Right
Tail
Gate
Chain

5—
Windshield
12—Tail
Gate

6—
Cowl
13—Left
Tail
Gate
Chain
7— Step
351

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

T
FIG.
T-7—TAIL
GATE
ASSEMBLY

—
LATE
MODEL
CJ-5, CJ-6
T-6.
Care
of
Fabric
Tops
Remove fabric
tops
from their protective covering
immediately after they are received. Store in a

dry,
clean,
airy
place. If the material is damp, the
top should be installed on the vehicle immediately

and
washed with a mild soap; then
give
the top a

quick
and thorough rinsing.
T-7.
Brake
and
Clutch Pedal Pads

A
clutch and brake pedal pad cover has been re­ leased which has a .44" [11,18 mm.]
groove
molded into the back side of the pad cover. When installing,
the grooved opening is located down and to the

bottom
of the pedal. See Fig. T-ll. The purpose of the
groove
concerns models not listed in this
manual.
The pedal pad cover formerly used is
FIG.
T-8—VEHICLE
CONTROLS
—
LATE

CJ-5
AND CJ-6
SINGLE
LEVER
TRANSFER
CASE
1—
Light
Switch

2—
Windshield
Wiper
Switch

3—
Hazard
Warning
Light
Switch
4—
Hand
Throttle*

5—
Choke
Control

6—
Brake
Warning
Light*

7—
Windshield
Washer
Control

8—
Ignition
Starter
Switch

9—
Cigarette
Lighter*

10—
Turn
Signal
Lever

11—
Instrument
Cluster

12—
Horn
Button

13—
Glove
Compartment

14—
Transfer
Case
Shift
Lever

15—
Transmission
Shift
Lever

16—
^Heater
Controls*

17—
Accelerator
Pedal

18—
Brake
Pedal

19—
Clutch
Pedal

20—
Hand
Brake
Control

21—
Headlight
Dimmer
Switch

*On
applicable models only. solid in construction without groove.
Either

grooved and solid pad covers can be installed on

CJ-3B,
CJ-5,
CJ-5A,
CJ-6,
CJ-6A,
DJ-5 and DJ-6 models.
T-8.
Front Seat Adjustment
The
Bostrom bucket type driver's seat installed on

early
Models CJ-5, CJ-6, DJ-5 and DJ-6, are equipped with a 3-position manual adjustment.
Three
attaching
holes
are provided in the seat
support at the four seat mounting locations. To
adjust
the seat, remove the four attaching bolts,

move
the seat and four mounting spacers to the
desired
location, and reinstall the
bolts
at the new
location. Refer to Fig. T-12.

On
late models the driver's seat may be quickly ad­

justed
to the most comfortable driving position by releasing the lever located at the lower left front

edge
of the seat. Pushing the lever to the right al-
CD CD®
®@©"®^
FIG.
T-9—VEHICLE
CONTROLS
—
CJ-5,

CJ-6
DUAL
LEVER
TRANSFER
CASE

1—
Light
Switch

2—4-Way
Flasher
Switch*

3—
Hand
Throttle

4—
Choke
Control
5—
Brake
Warning
Light*

6—
Ignition-Starter
Switch

7—
Instrument
Cluster

8—
Horn
Button

9—
Qlove
Compartment

10—Heater
Controls*

•On
applicable models only.
11—
Front
Axle
Drive
Shift
Lever

12—
Transmission
Shift
Lever

13—
Aux.
Range
Shift
Lever

14—
Accelerator
Pedal
15—
Brake
Pedal
16—
Clutch
Pedal

17—
Headlight
Dimmer
Switch

18—
Hand
Brake
Control

19—
Turn
Signal
Lever
355