Ingersoll-Rand PF20X-X-X-B manual Pilot Valve, Part Group, Major

	PARTS LIST / PF20X-X-X-B AIR SECTION
				118	169 k	168 k	172 k
		121					171 k	PILOT VALVE
		k 174					170	PART GROUP
		k 173
		167
140	199 k	244 k	243 k 233		132 k	166 z k		173 k
								121
								118
135								174 k
133
								103
								101
. 134	141 k	200 k		241 k	128 =	240 ,	176 k	Optional 94117 Muffler
		138 k
		111
		139 k
MAJOR		137 k
VALVE		242
		128 =
		136
		105 ,						Figure 3

. 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

kApply Lubriplate FML-2 grease to “O” rings, “U” Cups

& mating parts.

=Apply Loctite 271 to threads at assembly.

MATERIAL CODE

[A]= Aluminum

[B]= Nitrile [Br] = Brass

[C]= Carbon Steel [Ck] = Ceramic

[D]= Acetal

[I] = Iron

[SP] = Santoprene

[SS]= Stainless Steel

[U]= Polyurethane

zSubstitute these “O” rings for “166” gasket on models PF20S-XXX-XXX-B.

147 k

146 k

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.

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