Jeep 1997 Grand Cherokee Service Manual page 253

COUS THERMAL (4) FAN HUB-TO-PUMP PULLEY NUTS DRIVE (4) FAN BLADE-TO-VISCOUS VIS- FAN DRIVE BOLTS
ZG
REMOVAL AND INSTALLATION (Continued)
Fig. 27 Fan Mounting Nuts
WARNING: CONSTANT TENSION HOSE CLAMPS
ARE USED ON MOST COOLING SYSTEM HOSES.
WHEN REMOVING OR INSTALLING, USE ONLY
TOOLS DESIGNED FOR SERVICING THIS TYPE OF
CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER
6094) (Fig. 29) SNAP-ON CLAMP TOOL (NUMBER
HPC-20) MAY BE USED FOR LARGER CLAMPS.
ALWAYS WEAR SAFETY GLASSES WHEN SERVIC-
ING CONSTANT TENSION CLAMPS.
(4) FAN HUB-TO-PUMP PULLEY FAN BLADE WATER PUMP PUL- PUMP ASSEMBLY WATER PUMP LEY STUDS
Fig. 28 Power Steering Pump Attachment
HOSE CLAMP TOOL
Fig. 29 Hose Clamp Tool—Typical
CAUTION: A number or letter is stamped into the
tongue of constant tension clamps (Fig. 30). If
replacement is necessary, use only an original
equipment clamp with matching number or letter.
(9) Remove lower radiator hose from water pump.
Remove heater hose from water pump fitting.
(10) Remove four nuts or bolts previously loosened
and remove the fan blade assembly and pulley (if fan
is installed at pump), or remove the pulley from the
vehicle.
(11) After removing fan blade/viscous fan drive
assembly, do not place thermal viscous fan drive in
horizontal position. If stored horizontally, silicone
fluid in viscous fan drive could drain into its bearing
assembly and contaminate lubricant.
6094 PUMP BRACKET HOSE CLAMP
COOLING SYSTEM 7 - 25