OPERATION AND MAINTENANCE
Page 9 of 20
After Pumping (
See “Pumping from Tank” above
)
Pumping from Draft
Note: To get full capacity, quick prime and maintain
pump efficiency:
a.) Position truck as near as possible to water supply.
b.) Avoid humps or sharp bends in intake hose. Make
sure no part of hose is higher than pump intake inlet.
(Air pockets in intake hose may cause loss of prime or
erratic pump action and may reduce pump capacity.)
c.) Make sure all intake connections are tight and dis‐
charge valves are closed.
d.) Immerse intake strainer at least two feet below water
surface to prevent pump from drawing air (Whirlpools
forming above intake strainer indicate that strainer is
too close to surface of water).
e.) Make sure intake strainer is far enough from bottom to
prevent pumping sand, gravel or other foreign matter.
1.
Prime the pump (see separate).
2.
Open discharge valves and increase engine speed to
obtain desired discharge pressure and capacity.
After Pumping (
See “Pumping from Tank” above
)
Engine Maintenance
Refer to Briggs and Stratton Operation and Maintenance
Instructions.
Pump Maintenance
The pump requires no maintenance other than draining
the volute body after each use. If the pump has been han‐
dling chemicals, salt water or dirty water, flush entire sys‐
tem with clean, fresh water for several minutes to remove
all traces of impurities.
Transmission Maintenance
(PB18G Gear Case Models Only)
Drain and refill with one pint SAE 90 weight gear oil after
100 hours of operation or one year.
Spark Arresting Muffler
Every 100 hours, examine the spark arrestor located in‐
side the exhaust primer adapter. Clean screen or replace
if damaged. Removal of the spark arrestor will require
removal of the butterfly assembly from the primer adapter.
ENGINE AND PUMP REPAIR
Repairs to be done during the Waterous or Briggs and
Stratton warranty period must be done in accordance with
the appropriate warranty policy.
Engine Repair
If engine service or repair is needed, refer to Briggs and
Stratton Operation and Maintenance Instructions. NOTE:
The control panel, primer, spark arrestor and muffler are
not furnished by the engine manufacturer. Refer to Water‐
ous Company Service Parts List supplied with the pump
for these parts.
Pump Repair
Pump repair should be done by Waterous authorized ser‐
vice personnel. Alternatively, parts can be purchased from
Waterous Company and installed by any mechanic famil‐
iar with pump overhaul and repair practices and procedu‐
res. Service Parts Lists are provided which give part de‐
scriptions and part Reference Numbers for ordering. Be
sure to give pump model and serial number and Parts List
number when ordering parts.
