Enerpac PMU-Series User Manual

Page 3

3. Be sure electrical power source is the correct one for

your pump. (See “3.0 Specifications” for electrical power
source specification).

4. Loosen lock nut and back out (turn counter-clockwise)

relief valve to prevent unintended pressure build-up. No
tools are needed to adjust relief valve. See Figure 1.

4.1 Hose Connections for Single-Acting

1. Couple hose to pump outlet shown in Figure 2. BE

SURE to use hose marked “ENERPAC 800 SERIES -
800 BAR/11,600 PSI MAX”.

2. Connect other end of hose to coupler on wrench as

shown in Figure 4.

4.2 Hose Connections for Double-Acting

1. Couple hoses to pump outlet manifold shown in Figure

3. BE SURE to use hose marked “ENERPAC 800
SERIES - 800 BAR/11,600 PSI MAX”.
“A” port is for advancing and “B” port is for retracting
the piston in the torque wrench. Pumps are supplied
with the specified coupling halves already connected to
the pump ports to prevent incorrect coupling of hoses
to wrench.

2. Couple hoses to torque wrench as shown in Figure 4.

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.

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.

SPECIFICATIONS

PUMPS FOR DOUBLE-ACTING TORQUE WRENCHES

Model

PME10422

PME10427

Electrical Power Source

220V, 1-phase, 50/60 Hz

115V, 1-phase, 50/60 Hz

Motor Rating

0.37 kW Universal, 4 Amps

1/2 HP Universal, 9 Amps

@10,000 PSI (700 Bar) / 85-89 dBA

Shipping Weight

22 kg (48 lbs) includes packaging

Operating Pressure

Up to 800 Bar/ 11,600 PSI

Flow vs. Pressure

3.3 L/min @0-50 Bar / 0.3 L/min @800 Bar

Max. Temperature of Oil

65°C (150° F)

Reservoir Capacity

2.8 L (0.75 Gal) total /1.9 L (0.50 Gal) usable

Figure 1, Pump Relief Valve

Figure 2, Pump Outlet

Relief Valve

Pump
Outlet

Figure 3, Pump Outlet Manifold

Outllet
Manifold