QF-730-009-HASCO Valve
Revision Level B
Girard Equipment, Inc. |
GU60000
15
Maintenance Instructions
Maintenance is required on certain replacement parts:
The HASCO GV60380 Viton quad O-rings must be inspected periodically for damage
and wear. When changing the GV60380 quad O-ring seal, we recommend that the 3
GQ95060 screws be replaced.
a) To replace the GV60380 quad O-ring, the valve must be in the open position.
Follow all safety requirements.
b) Remove the 3 GQ95060 screws and discard. Remove the used GV60380 quad
O-ring with a pic tool and discard. Ensure all surfaces are clean and free any debris.
c) Install new GV60380 Viton quad O-ring into the groove as shown. Do not use
sealers or grease when installing the new quad O-ring (in extremely low
temperatures, this may be difficult).
The HASCO GV60540 gasket should be replaced anytime the valve is removed from
the tank to assure proper sealing of the HASCO valve to the tank.
a) To change the GV60540 gasket, follow Step 4 in the Installation Instructions section
of this manual. If at any time the valve is removed, you must follow the hydraulic
system bleeding procedures in Step 9 (see page 10).
Hook quad O-ring with pick
tool and with an upward
motion pull the quad ring free
