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ATJ-1000H
Troubleshooting
9.
Troubleshooting
This section is a list of potential problems and solutions.
If the solution listed fails to correct the problem, call the
manufacturer at the numbers and address printed on the
back cover of this manual. Please have the model
number, and serial number of your jack available. The
serial number is permanently stamped on the left front
caster bracket.
Problem
Cause/Solution
Hydraulic stage fails
to lift load
•
Out of prime: See “Priming Instructions ”
on decal fastened to the jack and also
found in the “Operating Instructions ”
section of this manual
•
Low oil level, see the “REPLENISH OIL
SUPPLY” section of manual.
•
Release open, turn control knob
clockwise until tight.
Air stage fails to lift
load
•
Inadequate air pressure; requires 90 –
160 psi required
Hydraulic stage fails
to hold load
•
Release open, turn control knob
clockwise until tight.
Air stage fails to hold
load
•
Air leak. Remove jack from service and
repair leak. Possible dirty air valve seals.
Follow simple directions on cleaning the
air valve located in the “Maintenance
Instructions” section of this manual
Locking pawl cannot
be released with light
foot pressure on the
down foot pedal
•
Attach air hose and depress up foot pedal
to pressurize air cylinder. The air stage
will extend completely and now the down
foot pedal will pull the locking pawl back
so the air stage will lower. Do not attemp t
to pry the pawl loose.
