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a shut-off valve between the gauge and the
high-pressure line.
Should the hydraulic gauge be left in opera-
tion continuously, the calibration of the gauge
may be greatly affected, requiring recalibration
or complete replacement. Shut-off valves are
recommended as added protection for any hy-
draulic gauge that may be subjected to high
cycle rates or pressure fluctuations.
(1)
(2)
Pump
outlet port
(3)
A
(1) Gauge
(2) Shut-off Valve
(3) Gauge Adaptor
4.0 INSTALLATION
NOTE: When making hydraulic connections,
use high quality sealing compound only on the
threads of the male NPT fittings. If you use Tef-
lon tape, do not tape the first thread. Use tape
sparingly. Loose Teflon tape in your pump or
cylinder can cause malfunctions and damage.
Wrap tape so that it tightens upon assembly
(clockwise with the threads facing you). Install
your hydraulic gauge where it is easily read-
able but well protected against damage from
external sources.
1. Remove the hydraulic oil outlet plug(s) from
your pump.
2. Apply sealant (or Teflon tape) to male
NPT
threads.
pictured above. When tightening hydraulic
connections and fittings, use the proper
open-end wrenches. Do not use crescent
Hose or
B
coupler
C
L
Make
connections
or pipe wrenches, as they may damage the
high-pressure fittings.
5.0 OPERATION
The gauge should be operated at pressures
which do not normally exceed 75% of full
scale.
Using the gauge to read less than 10% of the
full scale can result in an erroneous reading.
IMPORTANT: The gauge should be checked
for accuracy on a periodic basis, especially
when the pressure measurement is critical and
a gauge failure or inaccuracy will create a haz-
ard to personnel or property.
10%
6.0 REPAIR AND SERVICE INFORMATION
Enerpac gauges are precalibrated by the fac-
tory to within ±1% and ±1
For recalibration, please refer to your local
phone or business directory. For warranty and/
or repair service, send your gauge to the near-
est Enerpac Service Center.
6.1 Glycerin Gauge Maintenance
For maintenance, please contact your nearest
authorized Enerpac Service Center. The proce-
dure for filling the glycerin gauge is covered in
Enerpac's Instruction Sheet, L2561.
as
3
75%
% of the full scale.
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