Replacement - Graco Husky 3300e Manual

Standard Diaphragm Diaphragm Replacement
Standard Standard Diaphragm
Disassemble the the Standard Standard Diaphragms
Disassemble Disassemble the Standard
NOTE: Diaphragm kits are available in a range of
NOTE: NOTE:
materials and styles. See Parts section.
1. Follow the Pressure Relief Procedure, page
Remove power to the motor. Disconnect all
hoses.
2. Remove the manifolds and disassemble
the ball check valves as explained in
Check Valve Repair, page
3. Remove the bolts (29) 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.
5. Hold a 28 mm wrench on the wrench flats of the
exposed piston shaft. Use another wrench on
the shaft bolt (20) to remove it. Then remove all
parts of the diaphragm assembly.
3A7037G

Replacement

Replacement
Diaphragms
Diaphragms
11.
11.
6. Rotate the drive shaft to move the piston fully to
the other side. See instructions in step 4. Repeat
step 5.
7. To continue with disassembly, see
Disassemble the Center Section, page
Repair
15.
13