QF-730-009-HASCO Valve
Revision Level B
Girard Equipment, Inc. |
GU60000
16
Test Instructions
The tank should be pressure tested according to work instructions from a Design
Certifying Engineer. Pay close attention to the weld flange in case of possible leaks in
this area.
Troubleshooting and Repair
THE VALVE LEAKS AROUND THE SEAL
1. Ensure the grooves and sealing surfaces are free of dirt and debris, wipe with
clean rag.
2. Visually inspect the seal for damage. If the seal must be replaced, follow the
steps in the Maintenance Instructions section of this manual.
3. Ensure the 3 flat head socket cap screws (GQ95060) holding the lid are
tightened to the proper torque.
THE VALVE DOES NOT OPEN
1. Check hydraulic fluid level. If needed, add fluid.
2. Check for air bubbles in the hydraulic lines. If air is present, follow the
instructions for bleeding hydraulic lines in Step 9 of the Installation Instructions
section of this manual.
3. Check lines and fittings for any indications of leaks. If leaks are found, make
necessary repairs.
4. Check the hydraulic pump for damage. If damaged, replace pump.
5. Check the piston (GV60160). With the base (GV60060) removed, look for
indications of fluid seepage around the piston. If the valve is leaking, it must be
disassembled and the GV60400 O-ring must be replaced.
6. If no leaks are found and the valve will not open, disassemble valve and inspect
the bronze sleeve bearing (GV60340), cam follower (GV60280), piston
(GV60160), spring (GV60360) and seal (GV60400).
THE VALVE PARTIALLY OPENS OR CLOSES
1. Remove the valve and inspect the bronze sleeve bearing (GV60340), cam
follower (GV60280), piston (GV60160), spring (GV60360) and seal (GV60400).
If any debris is found, remove the debris and clean the part. If any parts are
damaged, replace the damaged parts.
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