5 Maintenance
Step 5
Removing seal retainers
1. Remove screws (15).
2. Then remove seal retainers (14) - as a liquid sealant has been
used a lever may be required to remove retainers.
3. The lip seals (16) can be removed using a screwdriver/ lever
once the seal retainers are removed. It is essential to renew the
lip seals and it is recommended that new gaskets or sealant
be used prior to reassembly.
Step 6
Removing Gear
case Cover
1. Remove screws
(6).
2. Remove gearc
ase cover (5) after breaking the gasket seal then
press out the
lip seal (7). It is essential to renew the lip seal
prior to rea
ssembly.
Step 7
Removing timing gears
1. Release clamp plate screws (40) and remove clamp plate (39)
on pump series 1,2 and 3. For pump series 4,5 and 6 remove
the torque locking assembly screws in several stages.
2. Remove gears (36) using the tapped extraction holes provided,
or remove shaft assembly as shown in step 8 below.
Step 8
Shaft assembly removal
1. Using a soft mallet gently tap the rear end of each shaft (24 and
25), to remove through the front of the gearcase (1).
2. Support each shaft during removal from the gearcase.
3. Remove the shaft abutment spacer (27).
- For vertically ported pumps this is placed in the right hand
bearing bore when viewed on the front face of the gear case.
- For horizontally ported pumps the shaft abutment spacer is
placed in the top bearing bore.
1
8
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