Rebuild
24
3A0874F
Rebuild
Before proceeding, remove material feed line and pump
material out of the valve. Shut power off from control
panel and disconnect main power. Disconnect the motor
wire harness from the system. Loosen the home and
spool sensor set screws. Note the position of the sen-
sors and slide them out of the valve. Disconnect the air
lines.
Disassembly
Disconnect electrical power before servicing the motor
and motor coupling assembly. Refer to the illustrations
shown on page 27.
Refer to the drawings in the back of this manual for your
exact model.
Disassembly Of 1053 Valve Section
1. Remove motor from 1053 Motor Adapter Plate (21).
2. Remove mounting screws to remove valve from its
support.
3. On the right side of the valve, remove 1053 Mag
Piston End Cap (23). The 1052 Magnet Spool
Assembly Piston (22) will be inside the end cap.
NOTE:
If necessary, remove The 1052 Magnet
Spool Assembly Piston (22) from 1052 Magnet Pis-
ton End Cap (23) by applying low air pressure
through valve to push out the 1052 Magnet Spool
Assembly Piston (22).
4. Remove 1052 Seal Plate Cup (12).
5. Repeat steps 3 and 4 with the left side of the valve.
6. Push the 1053C Spool (7) out with a finger. If it does
not slide out, tap it gently using a wood or plastic
dowel.
A worn spool and sleeve assembly must be
replaced with a new (matched) assembly. If you are
rebuilding multiple valves be sure to keep the spools
and sleeves matched.
7. Remove 1053 Side Plates (15) from1053 Divorced
Block (10) and 1053 Top Divorced Section Block
(6).
8. Remove 1053C Main Assembly Block (9) from1053
Divorced Block (10) by removing Socket Head
Screws (29).
9. Remove 1053 Sleeve (25) from 1053C Main
Assembly Block (9).
10. Slide 1053 Divorced Block (10) away from Metering
Rod (1) and Guide Rods (30).
11. Remove 1052 Seal Cup (2) from1053 Divorced
Block (10). Remove Posipak Seal (28) from 1052
Seal Cup (2).
12. Slide 1053 Divorce Section Guide Rods (30) out of
1053 Rod Connection Block (16).
13. Remove1053 Rod (1) from Connection Block (16).
NOTE:
Only perform the steps below if the Motor
Coupling Section needs rebuilt.
Disassembly Of Motor Coupling Section
14. Loosen Socket Head Screws (35) to disconnect
1053 Rod Connection Block (16) from1053 Lead
Screw (18).
15. Remove 1053 Motor Adapter Plate (21) from1053
Top Divorced Section Block (6).
16. Remove Socket Head Screws (34) from 1053 Top
Divorced Section Block(6).
17. Remove 2 in. Bearing Retaining Sleeve (19) from
1053 Top Divorced Section Block (6).
18. Remove 1053 Lead Screw (18) and Lead Screw Nut
(17) from1053 Top Divorced Section Block (6).
To reduce the risk of electric shock, turn off and
disconnect power at main switch before disconnecting
any cables and before servicing or installing
equipment.
