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670077 (en) Page 7 of 8
PARTS LIST / 670077 AIR MOTOR SECTION
)
134
c
138
c
139
135
107
171
c
121
c
166
c
137
111
) ASSEMBLY TORQUE REQUIREMENTS (
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(123) screw, 4 - 6 in. lbs (0.45 - 0.68 Nm).
(134) bolt, 15 - 20 in. lbs (1.7 - 2.3 Nm), wait 10 minutes, then re-
torque to 15 - 20 in. lbs (0.45 - 0.68 Nm).
LUBRICATION / SEALANTS
c
Apply Lubriplate FML-2 grease to all “O” rings, “U” cups and
mating parts.
Figure 4
c
137
136
144
c
103R
123
(
118 121 174
c
173
c
PILOT VALVE PARTS
200
c
141
c
101
129
140
132
168
c
169
c
118
c
144
c
174
)
123
103L
c
173
170
167
PILOT VALVE PARTS
MAJOR VALVE
MAJOR VALVE DISASSEMBLY
Unthread (134) bolts, releasing (129) mu er assembly.
Pull (135) valve block and components from (101) center
body.
Remove (132) gasket, (141) valve plate and (140) valve
insert from (135) valve block.
Remove (134) bolts, releasing (107 and 136) plugs and
(111) spool.
1.
2.
3.
4.
MAJOR VALVE REASSEMBLY
Assemble new (138 and 139) “U” cups on (111) spool -
LIPS MUST FACE EACH OTHER.
Assemble (137) “O” rings to (136) large plug.
Assemble (137 and 166) “O” rings to (107) small plug.
Insert (111) spool into (136) large plug, then insert (136)
large plug into (135) valve block, being sure the (111)
spool is rotated to accept (140) valve insert.
Assemble (107) small plug into (135) valve block.
Assemble (140) valve insert and (141) valve plate to
(135) valve block. NOTE: Assemble (140) valve insert with
“dished” side toward (141) valve plate. Assemble (141)
valve plate with identi cation dot toward (132) gasket.
Assemble (132 and 200) gaskets, (135) valve block and
(129) muffler assembly to (101) center body, securing
with (134) bolts. NOTE: Tighten (134) bolts to 15 - 20 in.
lbs (1.7 - 2.3 Nm).
1.
2.
3.
4.
5.
6.
7.