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Inspection
Clean all parts with solvent and dry them thoroughly.
Inspect each component as follows:
1. Bearings: Insert shaft into bearing. Spin shaft. If
shaft does not spin smoothly, replace the bearings
and the shaft.
2. Motor: Use emery cloth to remove all nicks and
burrs from all parts.
3. Gear Shafts: Inspect at bushing points and seal
areas for rough surfaces and excessive wear.
If shaft measures less than 17.42 mm (.686") in the
bushing area, replace the gear assembly.
4. Gears: Inspect gear face for scoring and excessive
wear. If edges of gear teeth are sharp, break edge
with emery cloth. Replace gear assembly if gear
width is less than 23.47 mm (.924").
5. Housing: Measure the inside diameter of bushings in
housing and front plate. Replace the housing of front
plate if I.D. of bushings exceed 17.6 mm (.693").
(Bushings are not available as separate items.)
Check for scoring on the inside face of housing
assembly and face of front plate. Replace if wear
exceeds .038 mm (.0015").
Check gear pockets inside housing for excessive
scoring or wear. Replace if I.D. of gear pockets
exceeds 43.5 mm (1.719").
Inspect check valves within the side port housing to
make sure that the check valves are secure. If they
are not, replace housing.
6. Inspect all other disassembled components for
cracks, grooves, chips or nicks.
Greenlee / A Textron Company
H4670/42192 Submersible Trash Pump
Assembly
Refer to the Exploded View(s) and Parts List for correct
orientation and placement of parts.
Replace any O-rings, V-rings, seals, and gaskets on
parts that have been disassembled. Apply hydraulic
fluid or O-ring lubricant to all O-rings and all metal
surfaces which they must slide over. When installing
an O-ring which must slide over sharp surfaces, use a
rolling motion and be careful not to damage the O-ring.
Wherever the assembly results in metal-to-metal
contact, coat the surfaces with hydraulic fluid or O-ring
lubricant.
Placing Motor Back Into Operation
Before placing a rebuilt motor back into operation, it is
important to follow the break-in procedure to prevent
damaging the motor. If at all possible, run the motor at
operating RPM for 10 minutes with the motor discon-
nected from the machine. Idle engine and inspect for
external leaks and check to be sure that all connections
are tight.
If the motor cannot be run without being connected
to the machine, make all the necessary connections
and run motor at operating RPM for 10 minutes at
minimal load. Increase the load on the motor and run
for 3 minutes at operating RPM. Place a full load on
motor and run for 3 minutes at operating RPM. Idle
engine and inspect for external leaks and check to
be sure that all connections are tight.
1. Install new O-ring (3) in groove of front plate (16).
2. Dip gear assemblies into oil and slip into front
plate bushings.
3. Apply a thin coat of petroleum jelly to both milled
gear pockets of housing (2).
4. Use the location mark to align the housing and
front plate. Slide housing (2) over gears and shafts
until dowel pins are engaged. Secure with cap
screws (1). Tighten evenly in a crisscross pattern
to 29.8 to 33.9 Nm (22 to 25 ft-lb).
5. Liberally oil shaft seal (17) and install it over drive
shaft, taking care not to damage the seal. Place
backup washer (18) and washer (19) over drive shaft
and onto shaft seal. Place a sleeve over shaft and
press in shaft seal and washers until retaining ring
groove appears.
6. Place retaining ring (20) into housing. Use sleeve
again to press retaining ring in until it seats in
groove.
7. Install key (8).
8. Install O-rings (31) on adapters (30).
9. Apply a thread sealant compatible with hydraulic
system oil to the male pipe threads of the adapt-
ers (30) and 90° elbows (32). Install adapters and
elbows in motor (28) pressure port and tank port.
Tighten fittings securely.
6
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
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