GROVE Published 10-21-2010, Control# 198-04 7-25
5540F/YB5515 SERVICE MANUAL TRANSMISSION AND TORQUE CONVERTER
NOTE 2: Maximum Governed Speed is a datum figure
only. It cannot be adjusted or checked with the
engine installed in the machine.
Sump Oil Strainer Procedure (See Figure 7-15)
(after Transmission Overhaul)
If the transmission is not thoroughly cleaned during overhaul,
any particles below 200 micron (0.2 mm) can pass through
the existing suction strainer and into the transmission pump
before being caught in the pressure filter. This can result in
transmission pump failure and the transmission may have
contamination related problems (scoring of bearings and
clutch housing).
It is recommended that a special 75 micron (0.075 mm)
service suction filter is temporarily fitted after a transmission
overhaul to clean the system and prevent further damage.
The following procedure should be adopted:
1. During the overhaul, the transmission should be cleaned
as thoroughly as possible.
2. If a significant amount of particles and oil debris is
present, then it is recommended that the oil cooler and
pipework are cleaned or replaced.
3. Fill the transmission with clean, correct specification oil.
4. The transmission should be overfilled for initial start-up.
5. Disconnect the oil cooler feeder pipe at E and run the
engine at idle.
6. Drain the excess oil into a suitable container which will
prevent contaminated oil being pumped into the oil
cooler or transmission. The transmission must be kept
full at all times.
7. Reconnect the oil cooler at E. Run the machine to
working temperature and carry out functional tests.
8. Remove the connection or plug from the suction strainer
and drain the system.
NOTE: Drain through the strainer, not the drain plug and
DO NOT re-use this oil as it will be contaminated.
9. Remove and clean the service suction strainer with its
magnet. Retain for future use.
10. Fit the production suction strainer, tightening bolts F to
5.2-7.3 lb ft (7-10 Nm).
11. Fit a new pressure filter C.
NOTE: The pressure filter should be changed again after
100 hours running.
12. Refill the system with clean and correct specification oil.
Reference Only
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