Ingersoll-Rand 6544X-X ユーザーズマニュアル

Worn (14) insert. Replace (14) insert.
Worn (12) valve plate and pin assembly. Replace (12) 
valve plate and pin assembly.
Damaged (24) piston assembly. Replace (24) piston as-
sembly.

26.  Fit the turned diameter of the 90350 special installation 

tool into the bore in the bottom of (19) head assembly.

27. Place (38) adapter assembly down over (36) extension 

rod, with the thread on the (38) adapter up.

28.  Insert (32) washer into the groove on the top of (36) ex-

tension rod.

29.  Pull (38) adapter up around the (32) washer.
30.  Place (17) washer over (36) extension rod and onto (38) 

adapter.

31.  Clean with solvent and put Loctite 271 on the threads of 

(38) adapter. Screw (31) valve piston onto (38) adapter 
and tighten (see fi gure 4, page 3).

32. Push the assembled (38) adapter and (31) valve piston 

down thru the 90350 special installation tool until it bot-
toms.

33.  Remove the 90350 special installation tool by pulling up 

on it.

34.  Install (33) gland assembly over the (31) valve piston and 

push down, being careful to retain (34) seal in the “O” 
ring groove.

35.  Align the two screw holes and secure (33) gland assem-

bly to (19) head assembly with two (6) screws and two (7) 
lock washers.

36. Insert (13) insert spring assembly into the (19) head 

assembly, with the hooks down and the nylon roller to-
ward (31) valve piston.

37.  Apply grease to both (11 and 14) inserts and place them 

in position (see fi gure 10) with legs of insert toward (31) 
valve piston and the larger, (14) insert, located in front of 
the larger diameter nylon roller. Also, the nylon roller on 
the (13) insert spring assembly should be between the 
legs of both (11 and 14) inserts.

38. Apply grease to gasket side of (12) valve plate and put 

(15) gasket on (12) valve plate. To determine the correct 
side, the screw holes nearest the top and bottom of (12) 
valve plate are toward the exhaust port on the (19) head 
assembly. Also, the (12a) roll pins in (12) valve plate are 
at the top.

39.  Hold the (11 and 14) inserts against the (31) valve piston 

and slide the (15) gasket and (12) valve plate between 
the two inserts and (19) head assembly. Be sure the 
larger holes in the (12) valve plate are located in front of 
the larger or (14) insert. Also, be sure the pins are located 
at the top of the valve plate.

40.  Hook the round coil in (13) insert spring assembly over 

the (12a) roll pins (see fi gure 10).

41.  Hook the bottoms of the (13) insert spring assembly into 

the holes on the side of (12) valve plate (see fi gure 10).

42.  Insert (9) valve guide against the face of (12) valve plate. 

The legs of (9) valve guide should be down, with the leg 
having the threaded hole nearest the bottom located 
nearest the exhaust port of the (19) head assembly.

43.  Place (5) washer on each of the four (4) screws and insert 

into the provided holes and tighten evenly across the 
corners. NOTE: To ease the alignment of the holes, an “O” 
ring pick is helpful.

44.  Install (10) gasket in (8) air motor cap and secure with six 

(3) screws.

45. Place (2) defl ector on the exhaust port of (19) head as-

sembly, with the opening down, and secure with four (1) 
screws.

12 - Valve Plate and

 Pin Assembly

12a - Roll Pin

14 - Valve Insert

13 - Insert Spring

 Assembly

4 - Screw (4)
5 - Washer (4)

11 - Insert

9 - Valve Guide

Worn (35) “O” ring or (34) seal. Replace (35) “O” ring and 
(34) seal.

Worn (45) “U” cup. Replace (45) “U” cup.