Center Section Repair - Graco SaniForce 1040 Repair Parts

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: NOTE: Do not remove undamaged bearings.
1. Follow the Pressure Relief Procedure, page 9
Disconnect all fluid and air lines.
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 13
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
18
Section Section
12.
or Disassemble the
15.
.
5. Use a 10 mm socket wrench to remove the
screws (104) holding the air covers (103) to the
center housing (101).
6. Remove the air cover gaskets (102). Always
replace the gaskets with new ones. The gasket
part number depends on the diaphragm material
and will affect assembly of manifolds. Refer to
the parts list to verify which gasket to use.
NOTE: NOTE: If removing the diaphragm shaft bearings NOTE:
(111), use an o-ring pick to remove the u-cups
.
(106) first.
7. 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.
8. Inspect the u-cups. Replace as needed.
3A6780E