F
OR
M
ODELS
: JGW, JGR
AND
JGJ
S
ECTION
1 - D
ESIGN
S
PECIFICATIONS
& D
ATA
1/01
PAGE 1 - 15
Fastener Tightening Torque
Listed in the following tables are fastener tightening torque values required for proper
assembly of Ariel JGW, JGR and JGJ compressors. Refer to the section concerning a sub-
ject component for detailed assembly procedures.
Threads must be clean and free of burrs.
Torque values are based on the use of petroleum type lubricants on both the threads and
seating surfaces. Use lubricating oil or Lubriplate 630, except for compressor rods-piston
end, piston nuts and crosshead nuts use Never-Seez (by Bostik, Boston St., Middleton, MA
01949, phone: 508-777-0100). Molybdenum disulfide lubricants and Never-Seez are not
otherwise to be used for fastener lubrication, unless specified, or excessive stresses can
result with the listed values.
For latest available torque values, see ER-63 at www.arielcorp.com.
T
ABLE
1-11: F
ASTENER
T
IGHTENING
V
ALUES
FASTENER
NOMINAL SIZE,
INCH - TPI
TYPE
TORQUE,
LB X FT (N·m)
Main Bearing Cap - Cap Screw
5/8 - 11
12 Point - Grade 8
97 (132)
Connecting Rod Cap/Detuner Donut - Cap Screw
5/8 - 18
12 Point - Grade 8
123 (167)
Connecting Rod Cap/Detuner Donut - Cap Screw
3/4 - 16
12 Point - Grade 8
216 (293)
Crosshead Pin Thru Bolt - Lock Nut
7/16 - 20
Hex - Prevailing
39 (53)
Spacer Bar - Cap Screw
3/4 - 16
12 Point - Grade 8
160 (217)
Crosshead Guide to Frame - Cap Screw
5/8 - 11
12 Point - Grade 8
97 (132)
Crosshead Guide to Cylinder - Cap Screw
5/8 - 11
12 Point - Grade 8
97 (132)
Crosshead Guide to Cylinder -Stud Nut
1/2 - 13
Hex
48 (65)
Crosshead Guide to Cylinder -Stud Nut
9/16 - 12
Hex
70 (95)
Crosshead Guide to Cylinder -Stud Nut
5/8 - 11
Hex
97 (132)
Crosshead Guide Support - Cap Screw
3/4 - 10
Hex - Grade 8 or 9
160 (215)
Crosshead Guide Support - Cap Screw
5/8 - 11
Hex - Grade 8 or 9
90 (120)
Eccentric Vernier Cap - Cap Screw
5/16 - 18
Hex - Grade 8
Hand Wrench
Tight
Idler Sprocket Thru Bolt - Lock Nut
1/2 - 20
Hex - Prevailing
41 (55)
Rod Packing - Cap Screw
5/8 - 11
12 Point - Grade 8
70 (95)
Piston Nut
1-1/4 - 12
Ariel Design
695 (940)
Crosshead Nut
1-3/8 - 12
Ariel Design
650 (885)
Summary of Contents for JGJ Series
Page 30: ...FOR MODELS JGW JGR AND JGJ SECTION 1 DESIGN SPECIFICATIONS DATA PAGE 1 24 1 01 NOTES ...
Page 34: ...FOR MODELS JGW JGR AND JGJ SECTION 2 INSTALLATION PAGE 2 4 1 01 NOTES ...
Page 44: ...FOR MODELS JGW JGR AND JGJ SECTION 3 START UP PAGE 3 10 1 01 NOTES ...
Page 114: ...FOR MODELS JGW JGR AND JGJ SECTION 5 MAINTENANCE PAGE 5 42 1 01 NOTES ...
Page 120: ...FOR MODELS JGW JGR AND JGJ SECTION 6 TECHNICAL ASSISTANCE PAGE 6 6 1 01 NOTES ...
Page 130: ...FOR MODELS JGW JGR AND JGJ SECTION 7 APPENDICES PAGE 7 10 1 01 NOTES ...
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