Master 25M869, Операция

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Maintenance
Maintenance Maintenance Maintenance
Maintenance Maintenance
Maintenance Schedule
Schedule
Schedule
Establish a preventive maintenance schedule
based on the pump’s service history. Scheduled
maintenance is especially important to prevent spills
or leakage due to diaphragm failure.
Tighten Tighten
Tighten Threaded
Threaded
Threaded Connections
Connections
Connections
Before each use, check all hoses for wear or damage
and replace as necessary. Check to be sure all
threaded connections are tight and leak-free. Check
mounting bolts. Check fasteners. Tighten or retorque
as necessary. Although pump use varies, a general
guideline is to retorque fasteners every two months.
See
Torque Instructions, page 10 .
Flushing Flushing
Flushing and
and
and Storage
Storage
Storage
To avoid fire and explosion, always ground
equipment and waste container. To avoid static
sparking and injury from splashing, always flush at
the lowest possible pressure.
• Flush before first use.
• Flush at the lowest pressure possible. Check
connectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the LP-Gas
being dispensed and the equipment wetted parts.
• Always flush the pump and relieve the pressure
before long term storage.
Torque Torque
Torque Instructions
Instructions
Instructions
If diaphragm cover fasteners have been loosened,
it is important to torque them using the following
procedure to improve sealing.
NOTE: NOTE: NOTE: Cover screws have a thread-locking adhesive
patch applied to the threads. If this patch is
excessively worn, the screws may loosen during
operation. Replace screws with new ones or apply
medium-strength (blue) thread locker to the threads.
NOTE: NOTE: NOTE: Always completely torque covers before
tightening manifolds.
1. Start all screws a few turns. Then, turn down
each screw just until head contacts cover.
2. Turn each screw by 1/2 turn or less working in a
crisscross pattern in the order shown to specified
torque.
Diaphragm Diaphragm
Diaphragm cover
cover
cover screws:
screws:
screws: 90 in-lb (10.2 Nm)
10 3A6887A