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2.
Couple hoses to torque wrench as shown in Figure 4. Hand
tighten coupler lock rings. When using the Enerpac pump and
torque wrench combination, Series 800 hoses and couplers
are designed so that the pump advance port can only be
connected to the wrench advance port, and the pump retract
port can only be connected to the wrench retract port.
WARNING: To ensure proper operation, avoid kinking
or tightly bending hoses. If a hose becomes kinked or
otherwise damaged, it MUST BE replaced. Damaged
hoses may rupture at high pressure causing personal injury.
CAUTION: Attempting to couple a hose to the pump
or torque wrench while coupler is under pressure can
result in personal injury or fluid leakage.
5.0 OPERATION
When possible, a single user should operate the torque wrench
and pump. This can prevent accidental activation of the pump
while the operator is positioning the wrench.
1.
Check all system fittings and connections to be sure they are
tight and leak free.
2.
Check oil level in reservoir. Oil level should be 1 inch below
vent/fill plug opening.
CAUTION: Operating pump without a sufficient
amount of oil will damage pump. Add oil only when
system components are retracted or system will
contain more oil than the pump reservoir can hold.
3.
Vent reservoir by turning vent/fill plug 1 to 2 turns counter-
clockwise from fully closed position.
CAUTION: Reservoir must be vented whenever pump
is running. If not, a vacuum may develop in the
reservoir, preventing the flow of oil through the pump.
4.
Be sure the pump switch is "OFF". See Fig. 5.
Figure 5 - Pump Switch Positions
5.
Plug power cord into outlet. Use correct power source. See
Table I, Specification Chart for specifications.
Keep power cords short to avoid power losses. The pump
motor may function at lower voltage, but motor speed and oil
flow will be reduced and motor may become damaged.
NOTE: If the supply cord becomes damaged, it must be
replaced by the manufacturer or its service agent or similarly
qualified person in order to avoid a hazard.
6.
Press "l" on the pump switch to turn power on. Pressing the "l"
activates the electrical circuit, but does not turn the pump
motor on. The pendant switch activates the pump motor.
"ON"
(Activates Electrical
Circuit Only.)
"OFF"
Momentary
"ADVANCE"
(can be used
instead of pendant.)
5.1 Air Removal
When the wrench is first connected to the pump, air will be trapped
in the components. To ensure smooth and safe operation, remove
air by cycling wrench several times without load. Cycle until
wrench advances and retracts without hesitation.
Check oil level before operation.
NOTE: Perform "Air Removal" and "Pressure (Torque)
Adjustment:"
1.
During initial operation or start-up.
2.
When connecting a different wrench to the pump.
3.
When changing torque value (relief valve adjustment only).
NOTE: If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or similarly qualified person in
order to avoid a hazard.
5.2 Pendant Operation
Pendants
supplied
with
Single-Acting
(PMU10022 and PMU10027)
have a momentary pushbutton for
"Advance". The torque wrench
piston will "Retract" after the
"Advance" button is released.
Pendants
supplied
with
Double-Acting
(PMU10422 and PMU10427)
have a three position switch (See
Figure
6).
Press
momentary
pushbutton
for
"Advance".
Release "Advance" and the
torque wrench piston will retract. Use the "Retract" pushbutton if
you need to start the unit in the retract mode.
NOTE: For Double-Acting Pumps
The electric motor keeps running after the pendant is released.
Within 15 seconds of your last command from the pendant, the
motor will time-out and turn off, preventing heat build-up and
unnecessary wear and tear.
5.3 Pressure (Torque) Adjustment
CAUTION: Make these adjustments BEFORE putting
torque wrench on nut or bolt head. The pump
pressure setting may be above the pressure needed to
provide the required torque for your application. Exceeding
required torque will cause equipment damage and may lead
to serious personal injury.
1.
The pump is supplied with a pressure gauge installed. See
torque wrench instructions for amount of pressure required to
produce desired torque. Note that the maximum pressure
varies for different wrenches and accessories.
2.
Loosen locknut and back out relief valve to prevent
unintended pressure build-up. See Figure 1.
3.
Turn the pump on.
4.
Press and hold the "Advance" pushbutton and read pressure
gauge.
5.
While holding the "Advance" pushbutton, turn relief valve in
(clockwise) to increase pressure or out (counter-clockwise) to
decrease maximum pressure. Repeat until correct pressure is
obtained. Note: The "Advance" button must be released and
then repress to verify pressure when decreasing pressure
setting.
4
the
Pumps
the
Pumps
Figure 6 - Pendant
Press to
Retract
Press to
Advance
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