TM 5-4220-211-12&P
(3)
Connect separator discharge line (29, Fig. D-11) at separator and at third stage valve head (10, Fig. D-
7). Tighten line nuts securely.
t.
Install compressor into frame. (Ref. para 4-12.)
u.
Fill compressor with oil. (Ref. para 4-4.)
v. Start compressor. (Ref. para 3-5.) Bleed air from oil pump. Ref. para 4-25). Check all fittings for leaks.
Repair as required.
4-26.
ENGINE. Reassembly of the engine is covered in Appendix A.
4-27.
PURIFIER CHAMBER. The purifier chamber may be reassembled as follows:
a. Install O-rings (4 and 5, Fig. D-13) into grooves in top and bottom plugs (1 and 3, Fig. D-13). Install cartridge
O-ring (6, Fig. D-13) into groove in bottom plug (3, Fig. D-13).
NOTE
Back-up ring is installed at the end of the O-ring groove nearest plug threads and with the
flat face against the face of the O-ring groove.
b.
Apply a thin film of silicone grease to the O-rings, backup rings and plug threads.
c.
Install purifier cartridge. Ref. para 4-4.
d. Slip chamber (2, Fig. D-13) down over cartridge (7, Fig. D-13), screw chamber down on bottom plug (3, Fig.
D-13) until chamber comes down flush with bottom plug. Do not overtighten.
e.
Install top plug. Ref. para. 44.
4-28.
TORQUE LIMITS. Unless otherwise specified, the following torque limits shall apply.
Bolt Size
6 mm
7 ft-lbf (10 NM)
8 mm
18 ft-lbf (25 NM)
10 mm
32 ft-lbf (44 NM)
1/4"-20
6-9 ft-lbf (8-13 NM)
1/4"-28
6-9 ft-lbf (8-13 NM)
5/16"-18
12-15 ft-lbf (17-21 NM)
5/16"-24
15-18 ft-lbf (21-25 NM)
3/8"-16
23-28 ft-lbf (32-39 NM)
3/8"-24
30-35 ft-lbf (42-49 NM)
4-29. SPECIAL TOOLS. A valve tool for removing second and third stage inlet valves (4, Fig. D-6) and (1, Fig. D-7) is
provided with this compressor unit. Valve tool part number is 4555.
4-25/(4-26 blank)
