180 Troubleshooting
4. Inject compressed air on one side of the actuator to ensure that the spool moves freely inside the
valve (the same process will have to be done for the other side of the actuator).
• If the spool is not moving freely, lubricate or replace the air actuator.
• If the spool is moving freely, try injecting air in the tube and see if air is exiting from the quick
exhausts valves, close to the packer valve section actuator.
• If not, check that air lines are not blocked or bent, and, if necessary, replace the quick exhaust
valves.
Figure 8-7
Injecting compressed air
IMPORTANT: If air is leaking by the opposite port of the pressurized side of the actuator when both hoses are
removed, this could indicate that the o-ring on the air actuator piston is leaking. If needed
disassemble, clean, and lubricate with grease, or replace the o-ring.
Hydraulic spool
should move back
and forth.
Inject
compressed
air
To Next Page
Loading...
