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If pump is to be powered from a vehicle power system, it is
recommended that permanent wiring and connections be
made to vehicle power system which includes a 30 amp
slow blow fuse.
Circuit Breakers (AC only)
Power to the unit should be supplied from a dedicated 20
amp circuit breaker. No other equipment should be
powered from this breaker. If two pumps are supplied from
one breaker, that breaker must be capable of handling the
load of both motors.
Hose Installation
To prevent thread stripping, remove top and/or bottom
flange to install hose. Use Teflon tape to prevent leakage.
Thread the flange onto the hose. Reattach the flange to the
pump using 50 in.-lb. (.58 kg-m) maximum torque.
Dimensions
CALIBRATION
If a meter is used, calibrate according to the instructions in
the meter’s Owner's Operation & Safety Manual.
DANGER
Not for use with fluids that
have a flash point below
100°F (37.8°C, ie: gasoline,
alcohol).
Refer
to
NFPA
325M (Fire Hazard Proper-
ties of Flammable Liquids,
Gases, and Volatile Solids)
for flash points of common
liquids.
Static
electricity
buildup and discharge could
result in arc and explosion.
ASSEMBLY/DISASSEMBLY
NOTE: Pump should be thoroughly flushed prior to disas-
sembly.
Motor/Gear Assembly Removal
exploded view of pump)
1. If possible, position pump with sight caps down.
2. Remove four screws (item 19) and lift out motor/gear
assembly (items 1 and 24).
3. Drain oil from pump if additional maintenance to pump
is required.
Gear Assembly Replacement
1. Remove six screws (item 25) and pull gear assembly from
motor.
2. Pull drive gear (item 27) and key (item 28) from motor
shaft.
DO NOT DISASSEMBLE GEAR ASSEMBLY. Planet gears
and ring gear are marked for proper assembly and must not be
altered.
Diaphragm Assembly/
Check Valve Replacement
NOTE: Diaphragm and check valve assemblies can be ser-
viced without removing motor and oil from pump body by
removing one at a time with diaphragm facing up. Care must
be taken not to contaminate oil.
1. Remove motor and drain oil, if complete disassembly is
required.
2. Loosen cover (item 4) screws (item 19) slightly and drain
fluid trapped in the chamber. Then remove screws and
covers.
3. Remove retainer screws (item 11) and o-rings (item 42).
4. Remove diaphragm assemblies (items 7, 8, 9 and 10) by
pulling check valves out of pump body, starting with outlet
valves first (item 9 at top of pump).
5. Install new diaphragm/check valve assembly, noting ball
location in relation to flow. O-rings are on inlet valves at
bottom of pump. Lubricate O-rings before inserting into
pump body. See Figure #1.
Figure #1
6. Insert four screws (item 11) and o-rings (item 42) into
diaphragm as shown and tighten to 50 in.- lbs. (.58 kg-m)
of torque.
7. Install pump covers (item 4). Tighten screws to 50 in. lbs.
8. Install motor (item 1) and gear assembly (item 24). Be
sure gasket (item 26) is in place. Rotate motor until drive
shaft slips in hole in gear assembly. Tighten screws (item
19) to 50 in.-lbs. of torque.
9. Fill with approximately 16 ounces (.47 l)of automotive grade
SAE 30W oil through one of the holes for sight caps (item 30).
4
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