Center Section Repair - Graco SaniForce 1040e Repair Parts

Center Section Section Repair Repair
Center Center Section Repair
Disassemble the the Center Center Section
Disassemble Disassemble the Center
See the illustrations on the following page.
1. Follow the Pressure Relief Procedure, page
Disconnect all fluid and air lines.
2. Remove the manifolds and
check valve parts as directed in
Disassemble the Check Valves, page
3. Remove the fluid covers and
diaphragms as directed in
Disassemble the Diaphragms, page
TIP: Clamp the gear box bracket (27) to the TIP: TIP:
bench. Leave the pump connected to the motor.
4. Use a 5 mm hex wrench to remove 4 bolts (117).
Pull the pump off of the alignment housing (116).
TIP: TIP: It may be necessary to tap the pump with a TIP:
rubber mallet to disengage the coupler.
5. Use a 5/16 hex wrench to remove the plug (124).
Use a 30 mm socket wrench to remove the
bearing bolt (106) and the o-ring (108) from the
top.
6. Turn the shaft so the groove (G) on the drive
shaft (112) is at the top, in line with the alignment
mark (A) on the center housing.
3A3168N
Section
Section
12.
12.
14.
7. Use a 3/4–16 bolt, screwed into the hole for plug
(124), to push out the drive shaft (112). You can
also use the bearing bolt (106), but remove the
bearing (107) first. Be sure that the groove on
the drive shaft remains aligned with the markings
in the center section.
NOTICE
NOTICE NOTICE
Proper alignment is essential. Do not apply
more than about 10 in-lb (1.1 N•m) of torque.
Excessive torque could strip the housing
thread. If you encounter resistance, check
drive shaft alignment or contact your distributor.
8. Remove the seal cartridge (110), the o-ring (109)
and the radial seal (111) with o-ring (111a).
9. Slide the piston assembly (102) out of the center.
10. Leave the gearbox coupler (114) attached to the
gearbox (118) shaft unless it is damaged. If you
need to remove it, first remove the alignment
housing (116). Use an 8 mm hex wrench to
loosen the screw (115), then remove the gearbox
coupler (114).
NOTE: If the coupler does not come off freely,
NOTE: NOTE:
use a bearing puller to remove it. Do not use any
prying tools, as damage to the mounting flange
on the gearbox could occur.
Repair
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