Service procedures - cooling system Group 22
128
Service procedures
Coolant pump, replacing
Special tools: 999 2000, 999 2929, 999 6860
Removal
1
Switch off the main circuit breaker/disconnect batteries.
2
Drain the coolant.
3
Slacken the generator’s belt tension. Dismantle the belt ten-
sion device and allow the generator to hang in the bracket.
4
Remove the belt pulley. Remove the holder for the coolant
pump’s sealing ring.
5
Remove the central screw. Remove the flange for the belt
pulley with puller 999 6860.
6
Disconnect the coolant connection at the thermostat hous-
ing.
7
Disconnect the connection at the engine block.
8
Remove the coolant pump’s end cover. Remove the coolant
pump from the timing gear casing (3 screws at the front, 2 at
the rear).
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