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Page 59
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Maintenance
A705-40-880 Issue B
Check that the drive coupling or torque limiter (5) is correctly located on the motor shaft (7): refer to
.
If the coupling cover and the drive coupling or torque limiter are correctly fitted, loosen the two grub-screws
(14) on the coupling hub (15) and adjust the position of the coupling, then tighten the two grub-screws (14)
again. Continue at
to check the gap is now set correctly.
8. Ensure that all of the fixing bolts (8, 9 and 11) are tightened to a torque between 128 and 132 Nm.
9. Use the four bolts (3) to secure each coupling cover guard (2) to the coupling cover. Tighten the bolts to a torque
between 3 and 5 Nm.
5.15.9
Refit the pump-motor and coupling cover to the pump (with the motor change
frame)
CAUTION
Ensure that the bottom flange of the pump gearbox and the top flange of the coupling cover are clean and free
of burrs. If you do not, the pump gearbox and coupling cover may be misaligned and you may damage the pump-
motor, the pump or the torque limiter or drive coupling when you operate the pump.
. Undo and remove the four bolts (3) which secure each of the two coupling cover guards
(2) and remove the guard from the coupling cover (12).
2. Inspect the top flange of the coupling cover (12) and the bottom flange of the pump gearbox (1). The flanges
must be free of burrs and dirt. If necessary, clean or refinish the flanges.
. Use suitable lifting equipment to lift the pump-motor and coupling cover onto the bottom of
the pump frame (4). Carefully slide the pump-motor and coupling cover assembly so that it is directly under the
pump and so that the pump-motor terminal-box (9) is directly below the gearbox oil drain-plug.
4. Refit the three studs (3) to the pump frame (4) and secure with the nuts and washers (2).
5. Fit the motor change frame (6) so that the studs (3) go through the holes in the motor change frame. Slide the
motor change frame up the studs until the two locating pins (12) fit in the bolt holes (11) in the top flange of the
coupling cover.
6. Hold the motor change frame (6) in place, fit a washer and nut (5) to the bottom of each stud (3) and tighten the
nuts up the studs until the motor change frame (6) is secured against the top flange of the coupling cover.
7. Ensure that the top flange of the coupling cover is level at all times and alternately and evenly tighten the three
nuts (5) to start to raise the motor change frame (6) and the pump-motor and coupling cover assembly.
8. Refer to
. Turn the torque limiter or coupling hub (5) until the drive dogs align with the gaps
between the drive coupling element in the coupling hub (15).
9. Refer to
. Fully tighten the three lower nuts (5) on the studs (3) to raise the pump-motor and coupling
cover assembly until the top flange of the coupling cover locates against the bottom flange of the pump
gearbox.
10. Use the two M16 bolts (10) to secure the coupling cover and pump-motor assembly to the pump gearbox.
11. Refer to
and torque limiter or coupling amendment. Check the gap between the bottom face of
the coupling hub (15) and the inner faces of the drive dogs. If the gap is correct, continue at
.
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.
