Installation; Radiator Fan Description - Jeep 2002 WJ Service Manual

WG
WATER PUMP (Continued)
(2) Remove engine cover (Refer to 9 - ENGINE -
REMOVAL).
(3) Drain engine coolant (Refer to 7 - COOLING/
ENGINE/COOLANT - STANDARD PROCEDURE).
(4) Remove accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(5) Disconnect coolant hoses at water pump.
(6) Remove idler pulley.
(7) Remove water pump and clean sealing surfaces
(Fig. 6).

INSTALLATION

(1) Clean all sealing surfaces.
(2) Position and install
Tighten M6 bolts to 14N·m (124 lbs. in.) and M8
bolts to 20N·m (177 lbs. in.).
(3) Install idler pulley. Tighten bolt to 35N·m (26
lbs. ft.).
(4) Install coolant hoses.
(5) Install accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION).
(6) Close coolant drain.
(7) Install engine cover (Refer to 9 - ENGINE -
INSTALLATION).
1 - COOLANT HOSE
2 - WATER PUMP
3 - WATER PUMP BOLTS
waterpump (Fig. 6).
Fig. 6 WATER PUMP - TYPICAL
(8) Connect negative battery cable.
(9) Fill coolant system to proper level with the
appropriate coolant mixture (Refer to 7 - COOLING/
ENGINE/COOLANT - STANDARD PROCEDURE).
WARNING: USE EXTREME CAUTION WHEN ENGINE
IS OPERATING. DO NOT PUT YOUR HANDS NEAR
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE
CLOTHES.
(10) Start engine and inspect for leaks.
RADIATOR FAN
DESCRIPTION
The hydraulic fan (Fig. 7) replaces both the electric
fan and the engine driven mechanical fan. The
hydraulic cooling fan is integral to the fan shroud
and is located between the radiator and the engine.
The power steering pump supplies the hydraulic
fluid and pressure to rotate the cooling fan blade,
while the electrical portain of the fan is controlled by
the electronic control module (ECM).
The hydraulic fan drive (motor) consists of the
three major following components:
4 - IDLER PULLEY
5 - IDLER PULLEY CAP
6 - COOLANT HOSE
ENGINE 7a - 15