5
5
Models with Internal Relief Valves (Not available on Steel Version).
ATTENTION
The optional built-in relief valve is intended for momentary protection of pump against overpressure. It is
not intended to be a pressure or flow control device. Continuous bypass of pumped liquid through this
valve will cause the liquid to heat up very rapidly. Excessive temperature rise will damage pump
.
DANGER
Relief valves are pre-set at factory. DO NOT TAMPER WITH RELIEF VALVE.
Tampering with relief valve will void pump warrantee and can cause bodily injury or loss of
life. If relief valve must be adjusted, return pump to factory.
PARTS LIST TABLE
Table 2. Pump Parts List.
IDP QTY DESCRIPTION IDP QTY
DESCRIPTION
1 1
Housing
16X 1 Seal
2 1
Inlet
Cover
19X
1
Break Down Bushing (Steel Pumps Only)
3 8
Bolt
20
1
Foot Mount Plate (Foot Mt. Pumps Only)
4 1
Inboard
Cover
21
4
Bolt (Foot Mt. Pumps Only)
7 1
Shaft
26X
1
Inlet Cover O-Ring
8 2
Idler
Rotor
31X
1
Inboard Cover O-Ring
11X
1
Ball Bearing
47
1
Pipe Plug ((2) on Weep Hole Pumps)
13 1
Key
95 1
Pin
15X 1 Retaining
Ring
X = Minor Repair Kit Item
INSPECTION
The interval for inspection and replacement of worn parts varies with properties of pumped liquid and can only
be determined by experience. All internal parts of 3G Series pumps are lubricated by pumped fluid. Pumping
liquid that contains abrasive materials or liquid that is corrosive will significantly reduce service life and call
for shorter service intervals. A worn pump will be noticeable by excessive vibration, noise, reduction in flow
output and/or reduction in system pressure.
PUMP MAINTENANCE
WARNING
Failure to observe precautions while installing, inspecting, and maintaining pump can
cause injury to personnel from accidental handling, e.g.: Liquids that may harm skin or
clothing, fire hazard risks from flammable liquids, or injury from high pressure fluid jets
