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CLEANING AND INSPECTION
1.
Remove cleanout hole cover, and remove any accumulation of grease from inside of the
grease chamber.
2.
Inspect the pump frame, gear cover and casing for cracks or other damage that could impair
function of the pump.
3.
Clean the outside of the frame, shaft, timing gears and bearing covers with a clean rag soaked
in white gasoline or kerosene, and flush all surfaces.
4.
Flush the inside of the pump frame with white gasoline or kerosene to remove any harmful
material. Dry with compressed air or allow solvent to evaporate.
Note:
Clean rotor end of the shaft thoroughly after reassembly to remove any solvent that
could contaminate the process fluid.
5.
Inspect the shafts carefully for nicks or scratches. Remove small nicks or scratches with a
fine file or emery cloth.
6.
Examine the bearing covers and rotors for cracks or other signs of excessive wear.
7.
Examine the keyslots in shafts and gears and woodruff keys for signs of wear. Keys must fit
tightly in key slots.
SEAL INSPECTION - SEAL RING
1.
Inspect the carbon face of the seal ring and seal ring chamber for nicks and scratches on the
sealing surfaces.
2.
Carefully inspect the wear ring for excessive wear.
3.
Examine the bearing cover seal, alignment ring seals, and the gear cover seal for cracks,
nicks and excessive wear.
4.
Inspect all o-rings for cuts, abrasions or other wear that can cause leakage.
5.
Carefully examine the gear cover gasket and cleanout cover gasket for nicks, cuts, scratches
or excessive wear.
Parts showing excessive wear should be replaced.
REASSEMBLY
If it is necessary to replace the bearing cover seals or alignment ring seals, the new seal must be
installed with the spring loaded seal lip facing away from the bearings. The spring loaded seal lip
on the gear cover seal must face the gears.
If it is necessary to replace the bearings:
1.
Press the bearings onto the shaft and install the bearing retainer ring (Part No. 102).
2.
Install the inboard shaft retainer ring (Part No. 177) in the pump frame.
3.
Place the outboard bearing cover seal, outboard bearing cover and outboard bearing cover o-
ring on the shaft.
4.
Stand the pump on the eight studs and start the shaft through the pump frame.
5.
Press the shaft until the bearings are firmly seated*. Install the outboard bearing cover
retainer rings (Part No. 177). Lubricate the bearings.
*
These bearings are an easy fit, and will not require much force.
MAINTENANCE