PF20X-XXX-XXX-B (en)
Page 7 of 8
PARTS LIST / PF20X-XXX-XXX-B AIR SECTION
168
105
TORQUE REQUIREMENTS
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
Torque (105) Screw to 35 - 40 in. lbs (4.0 - 4.5 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
Apply Lubriplate FML-2 grease to “O” rings, “U”
Cups and mating parts.
Apply Loctite 271 to threads at assembly.
136
137
139
111
138
135
133
134
101
103
174
121
118
173
169
172
171
170
167
173
121
174
118
166
132
243
244
199
141
140
240
200
241
128
176
PILOT VALVE
PART GROUP
MAJOR
VALVE
A replacement Major Valve Service Assembly is available separately, which includes the following:
637374-2 for models PF20A-XXX-SXX-B: 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 PF20S-XXX-SXX-B: 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
201
(Optional 94117 Muffler)
128
233
242
147
146
PF20S-XXX-XXX-B.
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[Br] = Brass
[C] = Carbon Steel
[Ck] = Ceramic
[D] = Acetal
[I] =
Iron
[SP] = Santoprene
[SS] = Stainless Steel
[U] = Polyurethane
Substitute these “O” rings for
“166” gasket on models
126