Table of Contents
Advertisement
FIGURE 3-5. RADIATOR MOUNT
1. Radiator
2. Mounting Hardware
3. Subframe
Service
Radiator service is a specialized function usually not
accomplished by most maintenance shops. The large
size and weight of the off-road truck radiators dictates
that a specialized radiator shop be used for service and
repair on the radiators.
Installation
1. Attach a hoist to the radiator assembly and lift into
position on the subframe.
2. Insert the capscrews, washers, and nuts (2, Fig-
ure 3-5) at the lower radiator mounting brackets
but do not tighten at this time.
3. Inspect rubber bushings for lower support rods (5,
Figure 3-1) and replace if worn or damaged.
Install flatwashers, rubber bushings and nuts on
the lower end of radiator support rods and insert
rods into the subframe mounting brackets. Insert
remaining bushings, flatwashers and locknuts but
do not tighten. Install rods at radiator brackets and
tighten to standard torque.
C03023 03/01
4. Battery Box
5. Outlet Elbow
Cooling System
4. Install upper support rods (4) and mounting hard-
ware at radiator brackets and front upright brack-
ets. Do not tighten at this time.
5. Adjust the lower stabilizer support rods to position
the radiator perpendicular to the subframe within
±0.12 in. (3.0 mm) measured at top of radiator.
When position is established, tighten locknuts to
525 ft. lbs (712 N.m) torque to lock adjustment.
6. Tighten upper support rod mounts and recheck
perpendicularity of radiator.
7. Tighten nuts on capscrews (2, Figure 3-5) at lower
radiator mounting brackets to standard torque.
8. Install the fan guard using capscrews and wash-
ers removed during disassembly.
9. Install upper radiator hoses and lines between
radiator and engine, seat hoses fully and tighten
clamps securely.
10. Install lower radiator hoses and lines between
radiator and engine, seat hoses fully and tighten
clamps. If outlet elbows (2 & 4, Figure 3-3) have
been removed during radiator removal, install new
gaskets during installation.
11. Route hoses to fuel cooler, clamp in place and
attach to fuel cooler fittings.
12. Reinstall air conditioning system components:
a. Install condenser, condenser hoses, and
clamps.
b. Install receiver/drier and clamp hoses. Attach
wires to low pressure switch.
c. Clamp all hoses and wiring to studs using
clamps removed during disassembly. Refer to
Section "M" for complete instructions to evacu-
ate and recharge the air conditioning system
refrigerant supply.
13. Install grille and hood according to instructions in
Section "B".
14. Make sure all coolant drains are closed, pipe plugs
installed, and all hoses installed. Service cooling
system with the proper mixture of antifreeze as
recommended in the Lubrication and Service Sec-
tion. Check for static leakage and correct any
leaks. Start engine and run until cooling system
reaches operating temperature, recheck the cool-
ing system for leakage during engine operation.
C3-3
Advertisement
Table of Contents
Troubleshooting
