Center Section Repair - Graco SaniForce 2150 Repair Parts List Manual

Repair
Center Section Section Repair Repair
Center Center Section Repair
Tools Tools Tools Required Required Required
• Torque wrench
• 10 mm socket wrench
• 9/16 in. socket wrench
• Bearing puller
• O-ring pick
• Press, or block and mallet
Disassemble Disassemble the Disassemble the the Center Center Section Center
NOTE: NOTE: Do not remove undamaged bearings. NOTE:
1. Follow the Pressure Relief Procedure, page 9
Remove power from the motor. Disconnect all
hoses.
2. Remove the manifolds and
check valve parts as directed in
Disassemble the Check Valve, page
3. Remove the fluid covers and diaphragms
as directed in Disassemble the Standard
Diaphragms, page 14
Overmolded Diaphragms, page
NOTE: If you are removing only the diaphragm
shaft bearing (111), skip step 4.
4. Disassemble the air valve as explained in
Air Valve Repair, page 9
5. Use a 9/16 in. socket wrench to remove the
screws (3) and nuts (105) holding the air covers
to the frame.
18
Section Section
12.
or Disassemble the
16.
.
6. Use a 10 mm socket wrench to remove the
screws (104) holding the air covers (103) to the
center housing (101).
7. Remove the air cover gaskets (102). Always
replace the gaskets with new ones.
NOTE: NOTE: If removing the diaphragm shaft bearings NOTE:
(111), use an o-ring pick to remove the u-cups
(106) first.
8. Use a bearing puller to remove the diaphragm
.
shaft bearings (111), air valve bearings (115)
or pilot pin bearings (113). Do not remove
undamaged bearings.
9. Inspect the u-cups. Replace as needed.
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