Ingersoll-Rand ARO 666250-XXX-C - Manual (Page 5)

666250-XXX-C (en) Page 5 of 8
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) ASSEMBLY TORQUE REQUIREMENTS (
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(14) screw, 65 - 70 ft lbs (88.1 - 94.9 Nm).
(26) screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).
(27) screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).
LUBRICATION / SEALANTS
c Apply Key-Lube grease to all “O” rings, “U” cups and mating
parts.
d Apply Loctite® 271™ to threads.
e Apply anti-seize compound to threads and bolt and nut
fl ange heads which contact pump case when using stain-
less steel fasteners.
f Not used with models 6662XX-9XX-C, 6662XX-EXX-C and
6662XX-GXX-C.
PARTS LIST / 6662XX-XXX-C FLUID SECTION
FOR THE AIR MO-
TOR SECTION, SEE
PAGES 6 & 7.
Figure 2
COLOR CODE
Diaphragm Ball
Material Color Color
Hytrel Cream Cream
Nitrile Black Red (•)
Santoprene Tan Tan
Santoprene Green* N / A
(backup)
PTFE White White
(-) Stripe (•) Dot
* See item 8 in inset below.
Torque Sequence
3
2
7
5
1
8
6
4
9 10
PTFE
7
Santoprene
8
( green when used
as a backer )
View for 6662XX-XX4-C (PTFE dia-
phragm) confi guration only.
Air side Fluid side
Cross section view of diaphragms