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11
308060
Troubleshooting
Problem
Cause
Solution
Fluid leaking.
1. Screws or fittings loose.
1. Tighten.
2. Parts worn or damaged.
2. Repair pump.
3. Clogged bypass drain.
3. Drain.
Leakage at shaft seal (41).
(Leakage thro gh the shaft seal/
1. Fluid viscosity is too light (espe-
ciall if sing sol ent or other
1. Seal is designed for heavier vis-
cosit fl id s ch as paint Prob
(Leakage through the shaft seal/
adjustment nut opening.)
cially if using solvent or other
flushing material).
cosity fluid, such as paint. Prob-
lem should clear up after flush-
adjustment nut opening.)
flushing material).
lem should clear up after flush
ing is completed.
Noisy pump.
1. Improper coupler clearance.
1. Ensure 0.094 in. (2.39 mm)
clearance. See Fig. 2, page 6.
2. Motor not seating properly to
pump housing.
2. Loosen motor mount nuts, clean
flange and rotate motor to seat
properly; check seal for dam-
age.
3. Lack of grease in main thrust
bearing.
3. See
Lubrication
on page 9;
check for worn shaft bearings.
Coupler insert (6) wears out pre-
maturely.
Motor not seating properly to
pump housing.
Loosen motor mount nuts, clean
flange and rotate motor to seat
properly; check seal for damage.
Summary of Contents for 208995
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