1
6
a
Crankcase
2
4
5
b
3
Appendix D—Single Cylinder Assembly Details for HG600/THG600 Series
Bill of Materials
Ref .
No .
Part Number
Description
Cylinder Diameter
2.75"
3.25"
4"
5"
6"
6"
8"
8"
Piston Material
Steel
Steel
Steel
Aluminum
Iron
Aluminum
Iron
Quantity per Compressor
1.
3544-X2
Crosshead assembly
1
1
1
1
1
1
1
1
2.
3864
Balance weight
–
–
1
1
–
1
1
3
3.
3861
Crosshead cap
1
1
1
1
1
1
1
1
4.
2-253_
c
O-ring
1
1
1
1
1
1
1
1
5.
7001-043NC150A
a
Bolt (hex head, 1/2"–13 x 1-1/2")
8
8
8
8
8
8
8
8
6.
7001-050NC250A
b
Bolt (hex head, 7/16"–14 x 2-1/2")
–
–
3
3
–
3
3
9
7.
3812
Loctite 620 tube
1
1
1
1
1
1
1
1
a
Use Loctite retaining compound 620 and torque bolts to 40 ft. lb. when assembling.
b
Torque to 65 ft. lb.
c
_ denotes material code. See material code chart for details.
d
Registered trademark of the DuPont company.
Note: 3861-X1 single cylinder balance kit includes: (1) 3544-X2, (3) 3864, (1) 3861, (1) 2-253A, (9) 7001-043NC250A, (1) 3812
WARNING
CAUTION: Always relieve pressure in the
unit before attempting any repairs.
Material Code
A
Buna-N
B
Neoprene
®d
D
Viton
®d
E
PTFE
K
Kalrez
®d
77
