Page 7 of 8PM20X-X-X-B02
PARTS LIST / PM20X-X-X-B02 AIR SECTION
168 k
105 ,
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
Torque (105) Screw to 40 - 50 in. lbs (4.5 - 5.6 Nm).
Torque (134) Screw to 40 - 50 in. lbs (4.5 - 5.6 Nm).
Torque (240) Screw to 40 - 50 in. lbs (4.5 - 5.6 Nm).
LUBRICATION / SEALANTS
k Apply Lubriplate FML-2 grease to “O” rings, “U” Cups
& mating parts.
= Apply Loctite 271 to threads at assembly.
136
137 k
139 k
111
138 k
135
133
. 134
101
103
174 k
121
118
173 k
169 k 172 k
171 k
170
167
k 173
121
k 174
118
166 z k
132 k
243 k244 k
199 k
141 k
140
240 ,200 k 241 k 128 = 176 k
PILOT VALVE
PART
GROUP
MAJOR
VALVE
A replacement Major Valve Service Assembly is available separately, which includes the following:
637374-2 for models PM20A
-X: 105 (4), 111, 128 (2), 132, 135, 136, 137, 138, 139, 140, 141, 166, 176 (2), 199, 200, 233, 240 (2), 241, 242, 243 and 244.
637374-4 for models PM20S
-X: 105 (4), 111, 128 (2), 132, 135, 136, 137, 138, 139, 140, 141, 146, 147, 176 (2), 199, 200, 233, 240 (2), 241, 242, 243 and 244.
Figure 3
Optional 94117 Muffler
128 =
233
242
147 k
146 k
z Substitute these “O” rings for
“166” gasket on models
PM20S
-CSS-XXX-B02.
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[Br] = Brass
[C] = Carbon Steel
[Ck] = Ceramic
[D] = Acetal
[I] = Iron
[SP] = Santoprene
[SS] = Stainless Steel
[U] = Polyurethane