TM5-3820-256-10
3-28.
Water Pump. Troubleshooting procedures for the water pump are listed in table 3-21.
a. The table lists the common malfunctions that you may find during the operation or maintenance of the water
pump. You should perform the tests/inspections and corrective actions in the order listed.
b. This manual cannot list all malfunctions that may occur, nor all tests/inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective action, notify your supervisor.
Table 3-21. Troubleshooting the Water Pump
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
PUMP MOTOR
Step 1. Check to see if
Engage power take-off.
WILL NOT RUN.
truck power take-off is
engaged.
Step 2. Check to see if
Add fluid to hydraulic tank.
fluid level in hydraulic
reservoir is low.
2.
PUMP RUNS BUT
Step 1. Check to see if
Place suction hose inlet in
DOES NOT DELI-
suction hose inlet is in water.
water.
VER WATER.
Step 2. If using a suction
Clean strainer.
inlet strainer, check to see
if strainer is obstructed.
Step 3. Check to see if
Tighten connections.
suction line connections are
tight.
3-66
