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Page 55
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Maintenance
A705-40-880 Issue B
5.15.2
Lower the pump-motor and coupling cover (with the motor change frame)
1. Refer to
. Undo and remove the three nuts and washers from the tops of the studs (1) and remove the
studs and the motor change frame (7) from the pump frame (4).
2. Refer to detail A. Remove the two M16 fixing bolts (8) which secure the coupling cover to the gearbox; one bolt
is located next to the oil drain port and the other bolt is on the opposite side of the pump. Do not remove the
other two bolts (10), as these secure the pump-motor and coupling cover assembly to the pump.
3. Refer to
. Loosen the four M16 bolts (9) which secure the coupling cover (12) to the pump-motor (8). Do
not over-loosen or remove the bolts, as they secure the pump-motor in place.
4. Refer to
. Pass the three studs (3) through the holes in the pump frame (4); there are three holes in the
pump frame, as follows:
Two on the main cross-member, either side of the exhaust manifold.
One on the main cross-member on the opposite side of the pump, near the oil filler (refer to
).
5. Secure the tops of the three studs to the cross-members of the pump frame (4). Use a nut and washer above and
below the cross members and ensure that the nuts are tight, so that the studs cannot turn and become detached
from the cross-members. The studs should now hang down from the pump frame.
6. Position the motor change frame (6) so that the two locating pins (12, detail B) are upwards.
7. From the oil filler elbow side of the pump, slide the motor change frame between the top and bottom flanges of
the coupling cover, as shown in detail B.
8. Refer to detail B. Move the motor change frame (6) up over the studs until the two locating pins (12) fit into the
holes (11) from which the two fixing bolts were removed.
9. Hold the motor change frame (6) in place, then fit a washer and nut (5) to the bottom of each stud (3) and spin
the nuts upwards until the motor change frame is held tightly in place against the top flange of the coupling
cover.
10. Remove the remaining two coupling cover M16 fixing bolts (10). The mass of the pump-motor and coupling cover
assembly is now supported by the motor change frame (6).
11. Keep the top of the pump-motor level throughout and undo the three lower nuts (5) on the studs to lower the
pump-motor and coupling cover assembly until the pump-motor rests on the two cross-members at the bottom
of the pump frame (4). While you undo the three nuts, continually check that the top nuts are tight and that the
studs are firmly secured to the pump frame.
12. Ensure that the pump-motor rests securely on the pump frame and remove the motor change frame (6), then
remove the three studs (3) from the pump frame.
13. Carefully slide the pump-motor and coupling cover assembly out of the pump frame, then use suitable lifting
equipment to lower the pump-motor and coupling cover assembly so that it rests on the floor in an upright
orientation (that is, with the top flange of the coupling cover at the top).
5.15.3
Remove the coupling cover from the pump-motor
1. Refer to
. Remove the four bolts (9) which secure the pump-motor (8) to the coupling cover (12).
2. Take note of the orientation of the coupling cover on the pump-motor (so that you can refit it later in the same
orientation), then lift the coupling cover from the pump-motor.
WARNING
Ensure that the pump-motor, motor coupling and coupling cover assembly does not fall over when
you move it. If it falls over, it can cause injury to people.
