Pulsafeeder Pulsar Shadow - Manual (Page 33)

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7.8 Oil Seals
7.8.1 General Description
The pump has three oil seals as follows:
Motor Adapter Seal – Inside the motor adapter, below the worm shaft coupling.
Gearbox Oil Seal
– Inside the end play adjustment cap on the side of the gearbox.
Eccentric Box Seal – Surrounding the eccentric shaft, where it protrudes from the box.
7.8.2 Removal and Replacement
Use the following procedure to remove and replace the motor adaptor seal:
1. Remove the motor.
2. Loosen the coupling setscrew through the access plug hole in the motor adapter and remove the worm
coupling half.
3. Remove the four motor adapter bolts and withdraw the motor adapter from the gearbox. Take care
not to lose the shims from between motor adapter and gearbox.
4. Remove the oil seal from the motor adapter. Lubricate the replacement seal with PULSAlube 8G gear
oil and install by pressing into position.
5. Reassemble by reversing the above disassembly procedure.
Use the following procedure to remove and replace the gearbox oil seal:
1. Drain the gearbox.
2. Remove the four gearbox bolts, and withdraw the gearbox from the eccentric box, sliding it off the
eccentric shaft.
3. Remove the seal.
4. Lubricate the replacement seal with PULSAlube 8G gear oil and install by pressing into position.
5. Reinstall by reversing the disassembly procedure.
6. Refill the gearbox with PULSAlube 8G gear oil.
Use the following procedure to remove and replace the eccentric box seal:
1. Remove the gearbox.
2. Remove the four bolts that retain the eccentric side cap to the eccentric box.
3. Remove the eccentric side cap and withdraw the eccentric shaft.
4. Remove the seal.
5. Lubricate the replacement seal with PULSAlube 8G gear oil and install by pressing into position.
6. Reinstall by reversing the disassembly procedure.
7. Refill the gearbox with PULSAlube 8G gear oil.