Hitachi 312350E See for steps 13. Lay Assembly A and Assembly B on work bench

Reciprocator Repair

10.Clean all sealant from threads of any part you are reusing. Apply Loctite® 242 or Perma-Loc®115 thread sealant to first two or three internal threads of valve assembly (31).

If you removed capscrew (51) apply thread sealant to first two or three internal threads of valve stop (26). Apply primer to external threads of valve sleeve (29). Let dry for three or four minutes. Assemble. Remove excess sealant.

Allow 24 hours to cure before operating reciprocator.

11.Remove o-ring (13*) from bottom of spool valve (31) and replace it with a new o-ring.

12.Use a spanner wrench to screw piston (22) onto displacement rod (34). Torque to 40 to 48 ft-lb (54 to 65 N.m).

See FIG. 10 for steps 13-16.

13.Lay Assembly A and Assembly B on work bench.

14.Slide Assembly B in into center of tool (D), Part No. 189305. Align upper detent holes (C) of yoke (9) with center line of tool (D).

15.Insert spring (6) and one ball (7) into valve stop (26) of Assembly A. Tilt valve stop and start guiding it into tool (D), making sure ball is sliding into rounded slot in tool (D). Place other ball at the other end of spring and push it in with your thumb while rotating valve stop (26) until spring is horizontal and balls are in place. Continue holding this assembly together.

16.Slide valve stop assembly down into tool. Make sure balls (7) snap into upper set of holes (C) in yoke (9) and curved ends of guide clamp have engaged valve sleeve (29) groove. Slide tool (D) back over rod (12) to remove it.

Assembly A 26

51

6 7

31

12

29 9

C D

ti10606a

Assembly B

FIG. 10

14 312350E