Wheeler-Rex 35100 User manual

1
Operating Instructions
Models 35100 and 35101
Hydrostatic Test Pumps
030518
DIMENSIONS: 16” (40cm) L x 22” (55cm) W x 18” (45cm) H
WEIGHT: 91 lbs., 41.5 kg
PUMP: Twin Piston: Positive Displacement
Inlet & Outlet Ports: ½”NPT
Capacity: 3gpm, 11lpm
Pressure: Maximum pressure 500psi (34 bar)
Operating Speed: 1725rpm
Lubrication: Chassis Grease
Shaft Size: 5/8”
MOTOR: 1hp, 115/230V, 1ph, 60hz, 1725rpm
CONTROL: Adjustable pressure relief valve
GAUGE: Glycerin filled, 0 – 2000psi, (136 bar)
DISCHARGE HOSE: ½” x 10’ (3m), 2000psi (136 bar)
35100
DIMENSIONS: 16” (40cm) L x 22” (55cm) W x 18” (45cm) H
WEIGHT: 91 lbs., 41.5 kg
PUMP: Twin Piston: Positive Displacement
Inlet & Outlet Ports: ½”NPT
Capacity: 3gpm, 11lpm
Pressure: Maximum pressure 500psi (34 bar)
Operating Speed: 1725rpm
Lubrication: Chassis Grease
Shaft Size: 5/8”
MOTOR: 1hp, 220V, 1ph, 50hz, 1725rpm
CONTROL: Adjustable pressure relief valve
GAUGE: Glycerin filled, 0 – 2000psi, (136 bar)
DISCHARGE
HOSE: ½” x 10’ (3m), 2000psi (136 bar)
35101

2
Pressure Feed or Gravity Feed: (Preferred Method #1)
1. Fill the water line (or test vessel) to be tested prior to pump connection.
2. Connect water supply hose to the garden hose inlet (A) connection on the pump.
3. Open valve and turn supply water on.
4. Purge the pump and pressure hose of all air.
5. Connect output (pressure) hose between pump outlet connection (D) and water line
(or vessel) being tested
6. Turn pump on.
7. Purge water line (or vessel) of all air at the highest point of the system.
8. Bring water line (or vessel) to pressure. Watch the gauge (F) while pumping. When
the desired pressure is achieved, turn the isolation valve (C) to the “off” position.
The motor can now be turned off. If pressure drops, there is a leak in the line.
Siphon Method
Use a clean water source
1. Fill the water line to be tested.
2. Fill the intake hose (WR PN #34550 - not supplied with pump), with water, then quickly
place the hose into a bucket and turn pump on. (The unit is self-priming once primed.)
Continue to run pump until you see the water coming out of the outlet, with little or no
air mixed with it.
3. Connect the output hose to the water line. Continue on with steps 6 through 8 in
Pressure Feed Method.
Operating Instructions
Models 35100 and 35101
Hydrostatic Test Pumps

3
Pre-Setting Your Pump
Your pump can be pre-set to a specific pressure easily by adjusting the pressure relief valve.
1. Loosen the jam nut (G) on pressure relief valve. Then unscrew (counterclockwise
direction) the pressure relief valve knob (H) a few turns . Be sure not to unscrew the
knob too far as the knob and nut can easily be lost.
2. Add a ball valve (not supplied with pump) to the end of the high pressure hose.
3. Follow steps 2 through 4 from the ‘Pressure Feed Method’.
4. As water is flowing out of the high pressure hose, turn the ball valve to the off
position.
5. Slowly start turning pressure relief valve knob (H) in the clockwise direction by ¼
turn increments, until you reach the desired pressure. Tighten jam nut (G) to hold at
this desired pressure.
6. Your test pump is now pre-set. This eliminates over-pressurizing the water line (or
the vessel).
Operating Instructions
Models 35100 and 35101
Hydrostatic Test Pumps

4
Operating Instructions
Models 35100 and 35101
Hydrostatic Test Pumps
A Garden Hose Inlet
B Pump Cap (plastic cap)
C Isolation Valve
D High Pressure Hose Connection
E Pressure Relief Valve
F Gauge
G Jam Nut
H Relief Valve Knob
D
C
A
B
H
E
F
G

5
Troubleshooting Your Pump
Test pressure not being reached:
 Possible air in line (or vessel)
 Air needs to be purged from system.
 If using the Siphon Method and not getting pressure, try the
‘Pressure Feed’ or ‘Gravity Feed Method’ to ensure water is
getting into the pump.
 Check strainer O-Ring for cracks (located inside garden hose
inlet (A)).
 Pressure relief valve not adjusted properly.
 Turn relief valve counterclockwise and watch for change in
pressure.
 Remove pump from system and follow steps 1 thru 6 of the
“Pre-Setting Your Pump” section.
Pump Maintenance
 Pump 50/50 antifreeze/water solution through pump after each use to
lubricate internal parts of pump and to avoid freezing in cold weather.
 Lubricate piston and bearing with moly lithium grease after every 50
hours of use. Remove white cap (B) from pump to access grease
fitting.
 Pump repair Kit Wheeler Rex PN 36361
 Suction Hose Wheeler Rex PN 34550
Operating Instructions
Models 35100 and 35101
Hydrostatic Test Pumps
CAUTION !!!
This pump is designed for water only!!
The pump is equipped with an adjustable pressure relief valve (E), which helps protect the system from being
over pressurized. It can be preset by plugging the end of the hose. Turn the adjusting knob clockwise to
increase pressure and counterclockwise to decrease.