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14
AIR VALVE REMOVAL
REPAIR AND ASSEMBLY
STEP 1
Rotate the “Intermediate” to the
exhaust muffler side.
STEP 2
Using the 1/4 wrench (or straight
blade screwdriver) remove six
“Screws” from the “Muffler Plate”.
Note the center two “Screws”
should not be removed.
STEP 3
Stabilize the “Air Valve”
mechanism to prevent it from
shifting. Move the mechanism
to the “Hard Stop” position. See
Step 4-5.
TOOLS NEEDED
1) One Wrench, 1/4 Inch
2) One Screwdriver, Straight Blade
3) One Hex Key,
7
/
64
Inch (3mm)
WARNING
Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush, drain and process liquid from the
pump in a safe manner.
WARNING
Maintenance must not be performed when a hazardous
atmosphere is present.
STEP 4
STEP 5
STEP 6
Remove the “Air Valve” from
the “Intermediate”. Set the
mechanism to the the “Hard Stop”
position.
CAUTION: Only one side of the valve mechanism has a hard-stop.
Shifting the mechanism past its operating position can cause the spring
to pop free and internal components to come loose. Use caution when
shifting the mechanism manually.