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Standard
Standard
Standard Diaphragm
Diaphragm
Diaphragm Repair
Repair
Repair
Tools
Tools
Tools Required
Required
Required
• Torque wrench
• 10 mm hex key wrench
• 28 mm open end wrench
• O-ring pick
Disassemble
Disassemble
Disassemble the
the
the Standard
Standard
Standard Diaphragms
Diaphragms
Diaphragms
NOTE:
NOTE:
NOTE: Diaphragm kits are available in a range of
materials and styles. See Parts section.
1.
Follow the
Pressure Relief Procedure, page 11
Remove power from the motor. Disconnect all
hoses.
2.
Remove the manifolds and disassemble
the ball check valves as explained in
.
3.
Remove the clamps (30) from the fluid covers,
then pull the fluid covers off of the pump.
4.
To remove the diaphragms, the piston must
be moved fully to one side. If the pump is not
attached to the gearbox, turn the shaft by hand
to move the piston. If the pump is still attached
to the gearbox, loosen the screws and remove
the fan cover. Turn the fan by hand to rotate the
shaft to shift the piston to one side.
TIP:
TIP:
TIP: The air cover has 2 holes (H), one at the
9 o’clock position and another at the 3 o’clock
position. Use pin (131), placed in either hole
(H) as a brace for the wrench while removing or
installing diaphragm bolts.
a.
Hold a 28 mm wrench on the wrench flats
of the exposed piston shaft. Use another
wrench (10 mm hex key) on the shaft bolt
(13) to remove it. Then remove all parts of
the diaphragm assembly.
b.
Rotate the drive shaft to move the piston fully
to the other side. Repeat step 4a.
5.
To continue with disassembly, see
Disassemble the Center Section, page 18
14
3A5133J
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