Rebuild
26
3A0874F
18. Install both 1053 Side Plates (15) with Screws (5).
Insert the clear plastic Guards (not shown) into the
slots in the left 1053 Side Plate (15) so that the
access hole in the guard is toward the top of the
valve. Similarly, Install the right 1053 Side Plate (15)
so that the Guard seats in the slots and secure with
Screws (5).
Mount the Valve End Caps to the Seal Plate
Cups
19. Install a lubricated U-cup Seal into the groove of the
1052 Spool Magnet Piston Assembly (22). The
piston is thicker on one side of the groove. The lip of
the seal must be facing the thicker section.
20. Lubricate the bore in the 1053 Mag Piston End Cap
(23). Slide the 1052 Spool Magnet Piston Assembly
(22) 1053 Mag Piston End Cap (23) tucking the lip
of the U-cup seal into the 1053 Mag Piston End Cap
(23) carefully.
21. Install the Piston/End Cap onto the 1052 Aluminum
Cup Seal Plate (12) using four Socket Head Screws
(24). Torque fasteners to 7-9 in-lbs (0.8-1.0 N*m).
Tighten the Socket Head Screws in a cross pattern
gradually to prevent binding due to misalignment
(like you would tighten lug nuts on a car tire).
22. Push the Spool Rod (7) into the left side until it
contacts the piston. Repeat steps 19 - 21 for the
right side.
23. Install any removable needles that were previously
removed.
24. If your valve has cycle detection, slide the cycle
detection sensors into the slots on the end caps and
secure with the set screws. Do not over tighten the
set screws as the sensors may be damaged.
25. Connect the air lines.
Motor and Motor Coupling
Assembly
1. Assemble 1053B Motor Coupler (20) by inserting
Roll Pins (33) and Socket Head Screws (40).
NOTE:
This step is only required if the motor
coupler has been disassembled for service or
removed from the motor.
2. Assemble Lead Screw Nut (17) with Bearing (32)
and E-ring (31).
3. Thread 1053 Mod Lead Screw (18) into Lead Screw
Nut assembly until Lead Screw is flush with top of
nut.
4. Slide Lead Screw & Nut Assembly into 1053 Top
Divorced Section Block (6).
5. Slide Bearing Retaining Sleeve (19) into 1053 Top
Divorced Section Block (6) taking care to line up the
slots in the two pieces. Secure in place with Socket
Head Screws (34).
6. Secure 1053 Motor Adapter Plate (21) to 1053 Top
Divorced Section Block (6) using Socket Head
Screws (40).
7. Place 1053B Motor Coupler (20) on motor shaft and
torque the Socket Head Screws (40) to 9-11 in-lbs
(1.0-1.2 N*M) leaving about ½” of motor shaft visible
between Motor Coupler and motor. Insert
1053BMotor Coupler (20) through1053 Motor
Adapter Plate (21), align three Roll Pins (33) and
insert into Lead Screw Nut (17) and gently seat the
motor.
NOTE:
This step is only required if the motor
coupler has been disassembled for service or
removed from the motor.
8. Remove motor and motor coupler, tighten Socket
Head Screws (40) and reassemble securing motor
to Motor Mounting Plate using Socket Head Screws
(44).
