Ture HONDA CR-V 1999 RD1-RD3 / 1.G Workshop Manual

A/C System Service
Evacuation
Use only service equipment that is U.L.-listed and is cer-tified to meet the requirements of SAE J2210 to removeHFC-134a {R-134a)from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant andlubricant vapor or mist can irrhate eyes, noso and throat.Avoid breathing the air condhioner retrigerant and lubri-cant vapor or mist.
lf accidental system discharge occu.s. ventilate workarea before resuming service.
R 134a service equipment or vehicle air conditioner sys-tems should not be pressure tested or leak tested withcompressed arr.
!@ some mixtures of air and R-134a hsvo beenshown to be combustible at elevated pressures and canresult in tire or explosion causing iniury ot property
damage. Never use compressed air to pressure test R-134a service equipment or vehicle air conditioner svs-tems.
Additional health and safety information may be obtainedfrom the refrigerant and lubricant manufacturers.
1, When an A,/C System has been opened to the atmo-
sphere, such as during installation or repair, it must
be evacuated using a R-l34a refrigerant recovery/
recycling/charging station. {lf the system has beenopen for several days, the receiver/dryer should bereplaced, and the system should be evacuated forseveral hours.)
Connect a R-134a refrigerant recovery/recyclin g/
charging station to the vehicle, as shown, following
the equipment manufacturer's instructions.
Evacuate the system,
lf the low-pressure does not reach more than 93.3kPa (700 mmHg,27.6 in.Hg) in 15 minutes, there isprobably a leak in the system. partially charge thesystem, and check for leaks (see Leak Test).
Recovery/Recycling/Charging Station
22-60
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Charging
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant and
lubricant vapor or mist can irritate eyes, nose and
throat. Avoid breathing th€ air conditioner refrigerant
and lubricant vapor or mist.
lf accidental system discharge occurs, ventilate work
area before resuming service. Additional health and
safety information may be obtained from the relrigerant
and lubricant manufacturers.
Connect a R-'134a refrigerant recovery/recycling/charging
station to the vehicle, as shown. following the equipment
manufacturer's instructions.
R€covery/Recycling/Charging Station
HIGH-PRESSURESIDE
Add the same amount of new refrigerant oil to system
that was removed during recovery. Use only SP-'10
refrigerant oil.
Charge the system with Required amount of R-134a
refrigerant. Do not overcharge the system; the compres-
sor will be damaged.
Select the appropriate unit of measure for your
charging station.
Refrigerant capacity: 700 to 750 g
0.70 to 0.?5 k9
1.5 to 1.6 lbs.
21.7 to 26.5 oz.
ll-
22-61
Leak Test
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditionor refrigerant and
lubricant vapor or mist can irritate eyes, nose and throat.
Avoid breathing the air conditioner retrigerant and lubri-
cant vapor or mist.
lf accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle ajr conditioner sys-
tems should not be pressure tested or leak tested with
compressed arr.
!@ some mixturos of air and R-1348 have
been shown to be combustible at olovatod pres3uras
and can result in fire or explosion causing iniury or
property damage. Never use comprelised air to pressure
test R-13ila service equipment or vehicle air conditioner
systems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
2.
1.Connect a R-134a refrigerant recove rylrecycling/
charging station to the vehicle, as shown in the pre-
vious column, following the equipment manufactur-
er's instructions.
Open the high-pressure valve to charge the system
to the specified capacity, then close the supply
valve, and remove the charging system couplers.
Select the appropriate unit of measure for your
charging station.
Refrigerant capacity: 700 to 750 g
0.70 to 0.75 kg
1.5 to 1.6 lbs.
21.7 to 26.5 oz.
Check the system for leaks using a R-134a refriger-
ant leak detector with an accuracy of 14 g (0.5 ozl
per year or better.
lf you find leaks that require the system to be opened
(to repair or replace hoses, fittings, etc.), recover the
system according to the Recovery Procedure on page
22-59.
After checking and repairing leaks, the system must
be evacuated (see System Evacuation on page 22-601.
5.
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Compressor
Replacement
lf the compressor is marginally operable. run the
engine at idie speed, and let the air conditioner
work for a few minutes. then shut the engine off.
Disconnect the negative cable from the battery.
Recover the refrigerant with a recovery/recycling/
charging station (see page 22-59).
Disconnect the condenser fan connector. Remove
the compressor clutch connector and the wire har-
ness clip from the condenser fan shroud, then dis-
connect the compressor clutch connector. Remove
the mounting bolts and the condenser fan shroud,
CONDENSER FANCONNECTOR
6x1.0mm7 N.m 10.7 kg{.m, 5 lbl.ftl
'L
2.
5. Remove each bolt, then disconnect the suction and
discharge lines from the compressor. Plug or cap
the lines immediately after disconnecting them to
avoid moisture and dust contamination,
6x1.0mm9.8 N.m 11.0 kgf.m,7.2 lbf.ft)
DISCHARGE LINE
Remove the power steering pump belt (see section
17t.
Loosen the pivot bolt of the idler pulley bracket and
the adiusting bolt, then remove the Ay'C compressor
belt from the pulleys. lf necessary, remove themounting bolts from the left front mount, thenremove the A,/C compressor belt through the gap
between the bodv and the left front mount.
6.
7.
PIVOT BOLT10 x 1.25 mmAIUUSTING 4,t N.m (4.5 kgf.m, 33 tbf.ftlt€FTFRONTMOUltlT
10x 1.25 mm COMPRESSOR/t4 N.m (4.5 kgl.m,33 lbtftl BELI
LINE
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8. Remove the mounting bolts and the compressor.
E x 1.25 mm2a N.m (2.,1kgf.m, l7 lbl.ft)
lf necessary, remove the compressor bracket as fol-
lows.
. Remove the nut and the washer from the left
front mount. When tightening the nut to the left
front mount, make sure the washer is set proper-
ly on the left front mount as shown.
. Remove the mounting bolts and the compressor
bracket.
q
12 x 1.25 mm
59 N.m (6.0 kgt'm,
10 x 1,25 mmart N.m (4.5 kgf'm, 33 lbfftl
11.
10. Check the idler pulley bearing for play and drag,
and replace it with a new one if it's noisy or has
excessive play or drag.
lnstall in the reverse order of removal. Make note of
the following items,
. lf you're installing a new compressor, drain all the
reJrigerant oil from the removed compressor, and
measure its volume. Subtract the volume of
drained oil trom 130 m/ 14 U3 fl'o2,4.6 lmp'oz);
the result is the amount of oil you should drain
lrom the new compressor (through the suction fit-
trngl.
. Replace the O-rings with new ones at each fit-
ting, and apply a thin coat o{ refrigerant oil
before installing them. Be sure to use the right
O-rings for HFC-134a (R-134a) to avoid leakage.
. Use refrigerant oil (SP-10) for R-134a KEIHIN spi-
ral type compressors only.
. To avoid contamination, do not return the oil to
the container once dispensed, and never mix it
with other refrigerant oils.
. lmmediately after using the oil, replace the cap
on the container. and seal it to avoid moisture
aDsorprlon.
. Do not spill the refrigerant oil on the vehicle; it
may damage the paint; if the retrigerant oil con-
tacts the Daint, wash it off immediately.
. Adjust the Ay'C compr'essor b€lt (see psge 22-69)
and the power steering pump belt {see section
17t.
. Charge the system (see page 22-611, and test its
performance (see page 22-56]-.
IDLER PULLEY
+r N.m 14.5 kgt m,33lbf ftl
PIVOT BOLT10 x 1.25 mmir4 N.m {4.5 kgt m, 33 lbl'ft}BBACKET
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Gompressor
lllustrated Index
CENTER NUTReplace.
ARMATURE PLATEInspection, page 22-65
sHtM{s)Replace.
SNAP RING BReplace.
ROTOR PULLEYInspection. page 22-65
SNAP RING AReplace.
FIELD COILInspection, page 22-65
THERMAL PROTECTORReplace.Inspection, page 22-55Replacement, page 22-68
coMPRESSOR ----------------(Do not disassemble.)
O.RINGRoplace.
RELIEF VALVEReplacement, page 22-68
RELIEF VALVE COVER('97 modelonly.)
22-64
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Clutch Inspection
Check the plated parts of the armature plate for color
changes, peeling or other damage. lf there is dam-
age, replace the clutch set.
Check the rotor pulley bearing play and drag by rotat-
ing the rotor pulley by hand. Replace the clutch set
with a new one if it is noisy or has excessive play/drag.
Measure the clearance between the rotor pulley and
the armature plate all the way around. lf the clear-
ance is not within specified limits, the armature plate
must be removed and shims added or removed as
required, following the procedure on page 22-66.
Cloarance: 0.5 t 0.15 mm {0.020 t 0.q)6 in)
NOTE: The shims are available in four thicknesses:
0.1 mm. 0.2 mm. 0.4 mm and 0.5 mm
ABMATUBE
ROTOR
. Release the field coil connector from the holder, then
disconnect it. Check the thermal protector for conti-
nuity, lf there is no continuity, replace the thermal
prorecror.
NOTE: The thermal protector will have no continuity
above 251.6 to 262.4"F 1122 to 128"C). When the tem-perature drops below 240.8 to 219.8"F (116 to 104'C),
the thermal protector will have continuity.
Check resistance of the field coil.
Field Coil Resistance: 3.2 i 0.15 ohms at 68"F {20'C)
lf resistance is not within specifications, replace the
field coil.
22-65
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Compressor
Glutch Overhaul
1. Remove the center nut while holding the armature
plate with the tool.
A,/C CLUTCH HOLOERlCommerciallY .vailable)Robinair: P/N 1020,0Ked-Mooro: P/N J37872
CENTER NUT17.6 N.m ('1.8 kgf.m, 13lbfft)Reolace. \
i
2. Remove the armature plate by pulling it up by hand.
ARMATURE PLATE
sHtMls)Replace.
za:s
(i@,
22-66
3. Remove the snap ring B with snap ring pliers. Be
careful not to d8mage the rotor pulley and com-
pressor.
SNAP RING BR6place.
Remove the rotor pulley from the shaft with the
tools. Be sure the claws ot the puller are on the back
of the rotor pulley, not on the belt area; otherwise
the rotor pulley can be damaged.
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A/C Compressor Belt
Adjustment
Detlection Method
1. Apply a force of 98 N (10 kgf, 22 lbfl, and measure
the deflection between the A,/C comDressor and the
crankshaft pulley.
A/C Compressor Eelt
Used Beh: 7.5 - 10.5 mm (0.30 - 0.41 inl
New Belt: 5.0 - 7.0 mm (0.20 - 0.28 in)
Note these items when adjusting belt tension:
. lf there are cracks or any damage evident on the
belt, replace it with a new one.
. "Used belt" means a belt which has been used
for five minutes or more.
. "New belt" means a belt which has been used
for less than five minutes.
Loosen the pivot bolt of the idler pulley bracket and
the locknut ofthe adjusting bolt.
Turn the adjusting bolt to get proper belt tension,
Retighten the pivot bolt of the idler pulley bracket and
the locknut ofthe adiusting bolt.
Recheck the deflection of the A,/C compressor belt,
Tension Gauge Method
1. Attach the special tool to the Ay'C compressor belt as
shown below, and measure the tension of the belt.
A/C Comoressor Belt
Used Belt; 390 - 540 N (40 - 55 kgf, 88 - 120 lbtl
New Belt: 740 - 880 N (75 - 90 kgf, 170 - 200 lbt)
Note these items when adjusting belt tension:
. Follow the manufacturer's instructions for the
belt tension gauge.
. lf there are cracks or any damage evident on the
belt, replace it with a new one.
. "Used belt" means a belt which has been used
for five minutes or more.
. "New belt" means a belt which has been used
for less than five minutes.
BELT TENSION GAUGE07JGG - 00't010A
Loosen the pivot bolt of the idler pulley bracket and
the locknut ofthe adjusting bolt.
Turn the adjusting bolt to get proper belt tension.
Retighten the pivot bolt of the idler pulley bracket and
the locknut ofthe adjusting bolt.
Recheck the tension of the A,/C compressor belt.
22-69
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Gondenser
't.
Replacement
Recover the refrigerant with a recovery/recycling/
charging ststion (see page 22-59)
Remove the front grille (see section 20).
Remove the coolant reservoii, but do not discon-
nect the reservoir hose Jrom the coolant reservoir
and the radiator.
Remove the bolts and the suction line bracket as
shown. Remove the bolts and the upper mount
brsckets from the radiator.
UPPER MOUNTBRACKETS
Remove each bolt, then disconnect the discharge
and condenser lines from the condenser, Plug or
cap the lines immediately after disconnecting them
to avoid moisture and dust contamination.
6x1.0mm9.8 N.m 11,0 kgf.m, 7.2 lbfttl
t\,l/
ait- -:
i..
6x1.0mm
6xl.0mm9,8 N.m 11.0 kgf'm' 7.2lbf'ft)
22-70
DISCHARGE LINE
CONDENS€R LINE
6. Remove the mounting bolts, then remove the con-
denser by lifting it up as shown. Be careful not to
damage the radiator and condenser fins when
removing the condenser.
Install in the reverse order of removal. Make note of
the following items.
. lf you're installing a new condenser, add refriger-
ant oil (sP-10) (see page 22-54]..
o Replace the O-rings with new ones at each fit-
ting, and apply a thin coat of refrigerant oil
before installing them. Be sure to use the right
O-rings for HFC-134a (R-134a) to avoid leakage.
. Be careful not to damage the radiator and con-
denser fins when installing the condenser.
. Be sure to install the lower mount cushions of
condenser securely into the holes,
. Charge the system (see page 22-61), and test its
performance (see page 22-56).
7.
1,0 mm
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Troubleshooting
Tips and Precautions (cont'dl
Insen the connector all the way and make sure it is
securely Iocked.
Position wires so that the open end of the cover faces
down.
V
Faceopen end
Handling Wires and Harnesges
. Secure wires and wire harnesses to the frame with
their respective wire ties at the designated locations.
. Remove clips carefully; don't damage their locks.
Slip pliers under the clip base and through the hole at
an angle, then squeeze the expansion tabs to release the
clrD.
After installing harness clips, make sure the harness
doesn't interfere with any moving pans.
Keep wire harnesses away from exhaust pipes and
other hot parts, trom sharp edges of brackets and
holes. and from exoos€d screws and bolts.
NOT GOOD
A -M/
lr lr*
T€sting and Repairs
. Do not use wires or harnesses with broken insulation.
Replace them or repair them by wrapping the break
with electricaltape.
. After installing parts, make sure that no wires are
pinched under them.
. When using electrical test equipment, follow the
manufacturer's instructions and those described in
this manual.
. lf possible, insert the probe of the tester from the
wire side (except waterproof connector).
. Seat grommets in their grooves properly.
. Use a probe with a tapered tip.
Refer to the instructions in the Honda Terminal Kit for
identification and replacement of connector termi-
nals.
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