Operation and maintenance manual

Section 210-0010
COOLING SYSTEM - Cooling Fan and Motor
SM 2116 1-02
4
(7) and lockwashers (8). Torque tighten bolts (7) to
54 - 61 Nm (40 - 45 lbf ft).
3. Install fan (2) and motor (3) assembly to motor
carrier frame (5) and secure using bolts, nuts and
washers.
4. Using suitable lifting equipment, position motor
carrier assembly on the radiator assembly and
secure using bolts, nuts and washers.
Note: Ensure there is even clearance, all the way
round, between fan (2) and the fan shroud.
5. Install fan guard (6) to the radiator assembly and
secure with mounting hardware, as removed at
'Removal'.
6. Using suitable lifting equipment, install radiator
assembly to the machine as described in Section
210-0040, RADIATOR AND MOUNTING.
7. Position the hood assembly on the machine using
a suitable lifting device. Secure hood assembly on
the machine with mounting hardware, as described in
Section 100-0040, HOOD.
8. Start the engine and check for correct operation of
the fan (2). Refer to 'Testing' procedure contained in
this section.
9. Remove wheel blocks.
TESTING
Failsafe Check
Note: This test is carried out with the machine static
and secured at rest. Hood should be raised and
secured.
1. Start the engine and increase engine speed to
2 200 rev/min.
2. Maintain engine speed at 2 200 rev/min and
disconnect harness from the low temperature
unloader valve. Fan should automatically engage to
full flow speed.
MAINTENANCE
Numbers in parentheses refer to Fig. 2.
Motor Cartridge Replacement
1. Disassemble the motor without removing the
pressure plate (7).
2. Replace the cartridge assembly (2-6).
3. Reassemble the motor.
Note: To change the cam ring (6) only, or to
reassemble an exploded cartridge assembly (2-6), it
is necessary to compress the springs (3) under the
vanes (5).
Motor End Cap Replacement
1. Disassemble the motor without removing the plate
(7) or cartridge assembly (2-6).
2. Lubricate the needle bearing (19) of the new end
cap (1).
3. Reassemble the motor.
Motor Shaft Replacement
1. Disassemble the motor.
2. Place the housing on a clean surface, shaft up.
Remove the retaining ring (13) and extract the shaft
(12) from the housing (9), by pulling it straight out to
avoid damaging shaft seal (15).
3. Inspect the seal (15). If lips are damaged, replace
seal (15).
4. Grease the seal (15) and the shaft (12) seal area.
5. Insert the shaft (12) into the housing (9), and install
the retaining ring (13).
Motor Shaft Seal Replacement
1. Disassemble the motor.
2. Remove the shaft (12).
3. Place the housing (9) under a press, spigot up.
Using a seal driver, extract the shaft seal (15) from
the housing (9).
4. Grease the new seal (15) and install it on the seal
driver.
5. Install the housing (9) under the press, large
opening upward, and insert the shaft seal (15).
6. Reinstall the shaft (12), and reassemble the motor.