ARO PD20 series - Assembly Torque Requirements; Lubrication; Sealants

Page 6 of 12 PX20X-XXX-XXX-BXXX (en)
PARTS LIST / PX20X-XXX-XXX-BXXX FLUID SECTION
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(14) Diaphragm screw, 65 - 70 ft lbs (88.1 - 94.9 Nm).
LUBRICATION / SEALANTS
ASSEMBLY TORQUE REQUIREMENTS
 Apply Loctite 271 to threads at assembly.
 Apply Lubriplate FML-2 grease to all “O” rings, “U” Cups and mating parts.
(26) Screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).
COLOR CODE
(27) Screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).
Material Diaphragm
Color
Ball
Color
Hytrel CreamCream (•)
Nitrile BlackRed (•)
Santoprene TanTan
Santoprene
(Backup)
Green N/A
PTFEWhiteWhite
VitonYellow (-) Yellow (•)
(•) Dot
 Apply anti-seize compound to threads and bolt and nut ange
heads which contact pump case when using stainless steel fasteners.
 Apply Loctite 262 to threads at assembly.
 Apply Loctite 572 to threads.
Note: Lubriplate FML-2 is a white food grade petroleum grease.
(-) Dash
(131) Screw, 35 - 40 ft lbs (47.5 - 54.2 Nm).
 Not used with PX20X-XXX-AXX-B, -CXX and -GXX
 Not used with PX20X-XXX-XXX-B0L.
 Apply PTFE tape to threads.
1

22
 
19
21
22
19
 
21
60
69
29

70

131

68
181
60
26


63
6
7
8
9

14
15

175
144

43

180
144

26

61
(PX20X-AXX-XXX-BXXX)
(PX20X-BXX-XXX-BXXX)
(PX20X-FXX-XXX-BXXX)
61
5
27

Torque Sequence
3
2
7
5
1
8
6
4
FOR THE
AIR MOTOR SECTION
SEE PAGE 7 AND 8.
View for PX20X-XXX-XXT-BXXX (PTFE diaphragm)/
PX20X-XXX-XXL-BXXX (Long Life PTFE diaphragm)
conguration only.
(Santoprene)
8
(PTFE) 7
74

126
(PX20X-AXX-XXX-BXXX)
(PX20X-BXX-XXX-BXXX)
(PX20X-FXX-XXX-BXXX)
Figure 2