Enerpac GBJ-Series - Manual (Page 6)

6
9.0 PRESSURE GAUGE INSTALLATION
(GBJ-100 ONLY)
A pressure gauge is used on Model GBJ-100 only. The
gauge is shipped loose and must be installed prior to
jack operation. See Fig. 9.
Install the gauge as described in the following steps:
1. Be certain that the ram is fully retracted and that no
load is placed on the saddle.
2. Using a 17 mm open-end wrench, remove shipping
plug (A) from gauge port.
3. Be sure that O-Ring (B) is seated at the bottom of the
threaded port.
4. Position the gauge (C) over the port with the dial
facing out, toward the user.
5. While fi rmly holding the gauge housing so that it does
not move, thread the gauge swivel fi tting into the port.
Tighten the fi tting by hand using a 22 mm open-end
wrench.
IMPORTANT: To prevent damaging the O-Ring, do not
use a wrench extension when installing the gauge.
10.0 TROUBLESHOOTING
Refer to the troubleshooting table for a list of common
bottle jack symptoms, possible causes and solutions.
For repair service, contact an Enerpac Authorized
Service Center. Inspection and repairs should be
performed only by an Enerpac Authorized Service
Center or other qualifi ed hydraulic service facility.
TROUBLESHOOTING TABLE
SYMPTOM POSSIBLE CAUSE SOLUTION
1. Erratic action. Air in system. Bleed air from unit. Refer to Section 6.2 for air
bleeding instructions.
Hydraulic oil viscosity too
high. Drain all old oil from the reservoir. Refi ll to proper
level with Enerpac Type HF hydraulic oil (ISO
Grade 32). Refer to Section 6.1.
IMPORTANT: Dispose used oil in accordance with
all applicable laws and regulations.
Ram sticking or binding. Remove any dirt or gummy deposits from jack. Be
sure that jack is not misaligned under load.
Seal wear and/or internal
damage. Have jack inspected and repaired by Enerpac
Authorized Service Center.
2. Ram does not advance. Release valve is open. Close release valve.
Low oil level. Fill reservoir to the proper level with Enerpac Type
HF hydraulic oil (ISO Grade 32). Refer to Section
6.1.
Jack hydraulic circuit is air
locked. Bleed air from unit. Refer to Section 6.2 for air
bleeding instructions.
Load is greater than
capacity of jack. Use a higher capacity jack of appropriate load
rating.
A
C
B
Fig. 9 - Gauge Installation (GBJ-100 Only)