TM 10-4610-241-10
TO 40W4-13-41
Table 2-2. Operator Preventive Maintenance Checks and Services
Item
No.
13
Interval
During
2-30 Change 2
Location
Item To Check/
Service
Chemical Feed
Pump
Procedure
NOTE
Procedures c-h only apply to Models
WPES-10, WPES-20, and WPES-30.
c. Check that sight gage is in RED area of
sight glass. Add oil as required.
d. Check gearbox and oil lines for leaks
CAUTION
Excessive leakage will contaminate the
crankcase oil and score the plunger.
e. Inspect Pump cavity for leakage at
plunger sleeve. Water leakage(drops) into
the cavity past the packings is normal and
aids cooling. As packings wear from
normal use, the leakage will increase.
When this occurs, shut down the ROWPU
and tighten packing nuts as follows:
1. Get packing adjustment tool from
storage box. Insert end of tool into
packing sleeve. Slowly tighten packing
sleeve 1/8 turn. Restart ROWPU and
check for leakage. Repeat until leak has
been reduced to an acceptable level.
2. Repeat step #1 for other leaking
packings.
f. Inspect Pump Crankcase for oil leakage.
g. Inspect Pump and Motor Stand for
cracks, loose or missing hardware. Inspect
Belt Guard for cracks, corrosion and leaks
or missing mounting hardware and
corrosion.
h. Inspect Belt Guard for cracks, corrosion
and leaks or missing mounting hardware.
a. Inspect Electric Motor for discoloration
and excessive noise.
Not Fully Mission
Capable If:
Oil level too low
Class III leaks
Excessive leakage
cannot be controlled
Class III leaks
Hardware missing
Hardware missing
