Rebuild
3A0874F
25
Assembly
Before proceeding, remove any old o-rings or seals from
the valve and discard, clean the valve parts with an
appropriate solvent and replace o-rings and seals with
new parts from seal kit. Use Krytox 203GPL (part
number 84/0200-K3/11) for lubricating valve parts
including seals and o-rings.
Assembly Of 1053 Valve Section
NOTE:
Check the 1053 Rod (1),1053 Sleeve (25), and
1053C Spool (7) for wear and if they are worn secure
replacements before proceeding.
NOTE:
Use caution as you install new U-cup and
Posipak seals so that they are not pinched or torn. Do
this by making sure they are lubricated, and by tucking
the lips of the seal inward before uniformly pushing them
into position.
1. Lubricate spool outer diameter.
2. Insert 1053C Spool (7) carefully into the 1053C
Main Assembly Block (9), rocking it to ease it into
place.
Install the Seal Plates on the Main Body
3. Install a lubricated O-ring (27) on the left side of the
1053C Main Assembly Block (9) next to the sleeve
part of the 1053C Spool (7).
4. Install two lubricated Posipak Seals (11) in the left
1052 Seal Plate Cup (12) so that the O-ring side of
both Posipaks will be facing the 1053C Main
Assembly Block (9). Be sure to tuck the lip of the
Posipak into its cavity to avoid tearing it.
5. Position the left 1052 Seal Plate Cup (12) with the
oil cup upwards and slide it over the Spool part of
the 1053C Spool (7) with the counterbore for the
1052 Seal Oil Cup Retainer (14) facing out. Slide
the 1052 Seal Oil Cup Retainer (14) over the Spool
and install two Screws (62) using purple thread
locker. Torque fasteners to 9-11 in-lbs (1.0-1.2
N*m).
6. Repeat steps 3, 4 and 5 for the right side Seal
Plates.
Install the Dispense Sleeve and Connect
the Motor & Motor Coupling Assembly
7. Lubricate the dispense sleeve bore in the 1053C
Main Assembly Block (9). Insert the 1053 Sleeve
(25) into the Valve Body (89). Check for threads that
may be in the inside of the sleeve due to tapping
during removal and make sure these are at the top.
8. Place lubricated O-ring (27) over the 1053 Sleeve
(25) and against the 1053C Main Assembly Block
(9).
9. Insert the 1052 Seal Cup (2) into the 1053 Divorced
Block (10).
10. Slide a lubricated Posipak Seal (28) into the 1052
Seal Cup (2) with the o-ring side facing down.
11. Lubricate the 1053 Rod (1) and slide it carefully
through the Posipak Seal (28), 1052 Seal Cup (2)
and 1053 Divorced Block(10) so that it projects
about 1/2” through this assembly.
12. Using the projecting 1053 Rod (1) to guide the
assembly into the1053 Sleeve (25), slide the 1053
Divorced Block (10) down against the 1053C Main
Assembly Block (9) and secure with Socket Head
Screws (29).
13. Pull the 1053 Rod (1) away from the 1053C Main
Assembly Block (9) so that the end of it is only
slightly in the1053 Sleeve (25).
14. Slide the key slot in the 1053 Rod Connection Block
(16) over the end of the 1053 Rod (1).
15. Insert the 1053 Divorce Section Guide Rods (30)
through the 1053 Rod Connection Block (16) and
into the 1053 Divorced Block (10).
NOTE:
If the Motor and Motor Coupling Assembly
had been disassembled, then reassemble per the
instructions below before proceeding with these
next steps.
16. Position the Motor and Motor Coupling Assembly
above the Valve Body Assembly and bring them
together so that the 1053 Divorce Section Guide
Rods (30) enter their holes in the 1053 Top
Divorced Section Block (6) and the end of the Lead
Screw (18) seats in the 1053 Rod Connection Block
(16).
17. Install the Socket Head Screws (35) into the 1053
Rod Connection Block (16) against the groove in the
1053 Mod Lead Screw (18).
