Suction Test
NOTE
The suction test is perfomed the same way on all
pumps. PT4 is shown.
See Figure 2-5.
1. Support pump securely. (See
"Support Pump Securely" on page 7.)
2. Remove suction hose.
3. Prime pump. (See "Inspection" on page 2-7.)
4. Start engine.
Figure 2-5: Suction Port
5. Place palm of hand over the suction port (1) for 30
seconds.
Is suction present?
YES Pump suction is good. Inspect hoses and
strainer for damage or clogging
NO Proceed to Step 6.
6. Inspect the suction hose for packing.
Is the packing present and undamaged?
YES Proceed to Step 7.
NO Missing or damaged packing. Replace
packing.
7. Inspect suction hose for holes, crushing, or any
other damage.
Is suction hose free of holes, crushing, or
damage?
YES Proceed to Step 8.
NO Hose is damaged. Replace suction hose.
8. Remove front cover. (See
" Front Cover" on page 2-5.)
9. Inspect the impeller for debris or blockage.
Is the impeller free of any blockage or debris?
YES Proceed to Step 10.
NO Impeller is blocked. Remove any
blockage or debris.
10. Inspect impeller for damage.
Is the impeller free of any damage?
YES Pump suction is good. Inspect hoses and
strainer for damage or clogging.
NO Impeller is damaged. Replace impeller.
MAINTENANCE
2
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