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TRUCK SERVICE MANUAL
TM 5-4210-230-14&P-1
BODIES AND CABS
TORQUE CHART
IMPORTANT
All refrigerant fittings must be lubricated with refrigerant oil prior to tightening. Do not exceed specified torque. Use
two wrenches where applicable.
THREAD
LOCATION
SIZE
TORQUE
Condenser Inlet
3/4-16
30-35 N.m
22-26 ft.lbs.
Condenser Outlet
5/8-18
20-26 N.m
15-19 ft.lbs.
Filter-Dehydrator Inlet
11/16-16
15-20 N.m
11-15 ft.lbs.
Filter-Dehydrator Outlet
5/8-18
15-20 N.m
11-15 ft.lbs.
Compressor Suction Line
1-14
54-60 N.m
40-44 ft.lbs.
Compressor Discharge Line
1-14
54-60 N.m
40-44 ft.lbs.
Fan Drive Override Switch
7/16-20
9-15 N.m
7-11 ft.lbs.
Refrigerant Supply Line to Heater-A/C
(Evaporator) Unit
5/8-18
20-26 N.m
15-19 ft.lbs.
Refrigerant Return Line from Heater-A/C
(Evaporator) Unit
1 1/16-14
89-95 N.m
66-70 ft.lbs.
Expansion Valve Inlet
5/8-18
20-27 N.m
15-20 ft.lbs.
Expansion Valve Outlet
3/4-16
20-27 N.m
15-20 ft.lbs.
Expansion Valve Equalizer Line
7/16-24
14-20 N.m
10-15 ft.lbs.
Low Pressure Switch
7/16-20
9.5-20 N.m
7-15 ft.lbs.
Heater-Evaporator-Blower Unit Mounting Nuts
1/4-20
8-11 N.m
6-8 ft.lbs.
Condenser Mounting Bolts
5/16-18
15-19 N.m
11-14 ft.lbs.
Filter-Dehydrator Mounting Clamp
5/16-18
15-19 N.m
11-14 ft.lbs.
Clutch Retainer Bolt
5/16-24
20-27 N.m
15-20 ft.lbs.
Compressor Oil Level Plug
---------
5-15 N.m
4-11 ft.lbs.
Compressor-to-Mounting Bracket Bolts:
w/CAT 3208 Engine
3/8-16
24-27 N.m
18-20 ft.lbs.
All Other Engines
3/8-16
26-31 N.m
19-23 ft.lbs.
Compressor Mounting Bracket-to-Engine
Bolts
3/8-16
41-51 N.m
30-38 ft.lbs.
3/8-24
41-51 N.m
30-38 ft.lbs.
7/16-14
68-81 N.m
50-60 ft.lbs.
1/2-13
95-115 N.m
70-85 ft.lbs.
CTS-2731 Page 47
PRINTED IN UNITED STATES OF AMERICA
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