Genie Z-45/22, Service Manual

Page: 98 / 205

5 - 34 Genie Z-45/22 Part No. 29487
Service Manual - First Edition Section 5 - Troubleshooting Flow Charts
2000
PSI
Continued from the
previous page.
CHART 20
Install a pressure gauge
at the quick disconnect
coupling on the function
manifold and hold the
function switch.
less than
2000 PSI
function
operates
If primary is extended
one inch or more,
interchange the
accessible
counterbalance valve
with like valve from a
secondary lift cylinders.
Re-test function. If valve
is inaccessible continue
with function inoperative.
Replace defective
counterbalance valve.
function inoperative
Check for mechanical
restrictions OR the
cylinder has internal
defects OR replace
counterbalance valve.
Please consult Genie
Industries service
department.
2000
PSI
Repair the cylinder and/
or replace cylinder
counterbalance valves.
Remove the extend
function pressure line
from the manifold and
cap the port (EXTEN.).
Then, with pressure
gauge still attached,
operate the function up.
less than 2000 PSI
Internal defect in
manifold OR one of the
previous tests involving
the pump or manifold
components was
possibly overlooked or
diagnosed incorrectly.
Recheck and/or consult
Geinie Industries service
department.