1
11
12
22
23
24
2
3
4
6
13
14
15
16
17
18
19
20
3
21
7
8
9
10
5
Align slot with the
pin at the end of
the crankshaft.
Oil suction
25
Backside of
oil filter adapter
Note:
This threaded hole must be
plugged using the 1/8" NPT
threaded pipe plug (part
number 2590) included with
the 3870-X1 external oil
cooler assembly.
Otherwise, the oil will not
flow through the oil cooler.
See external oil cooler
assembly details near the
end of this manual.
Align pin with
slot on pump
shaft adapter.
Backside of
bearing carrier
Make sure oil-passage
hole is not blocked
by the gasket.
Cross section
of bearing carrier shows
lubrication tubing used to
lubricate the crossheads.
Oil
lubrication
tubing
3
11
Appendix D—Bearing Carrier Assembly Details for HG600/THG600 Series
WARNING
CAUTION: Always relieve pressure in the
unit before attempting any repairs.
Ref
No .
Part No .
Description
Qty .
14.
2-112A
O-ring
1
15.
3219
Pump shaft adapter
1
16.
2852
Oil pump spring
1
17.
2851
Spring guide
1
18.
2849-1X
a
Oil pump assembly
1
19.
2-228A
O-ring
1
20.
4222
Oil filter adapter
1
21.
4225
Filter
1
22.
1044
Bushing (1/8" x 1/4" NPT)
1
23.
1302
Oil pressure gauge
1
24.
7001-025NC050A Bolt (hex head, 1/4"–20 x 1/2")
11
25.
2798
Oil filter adapter pin
(included with 4222-X)
1
a
Caution: To avoid damage during assembly, refer to Important Instructions IE400.
Crankcase Assembly—Bill of Materials
Ref
No .
Part No .
Description
Qty .
1.
3220-2
Bearing carrier
1
3220-2X1
Bearing carrier assembly
1
2.
2131
Bearing carrier gasket
1
3.
3289
Pipe plug (1/4" NPT flush seal)
2
4.
2961-X
Air release valve assembly
1
5.
1736
Bearing cup
1
6.
1293
Relief valve ball
1
7.
1292
Relief valve spring
1
8.
1291
Adjusting screw locknut
1
9.
2-011A
O-ring
1
10.
1290
Relief valve adjusting screw
1
11.
1629
Pipe plug (1/16" NPT flush seal)
1
12.
7001-037NC100A
Bolt (hex head, 3/8"–16 x 1")
8
13.
2805
Pump shaft bushing
1
2805-X
Pump shaft bushing with tag
1
80
