110, 230, and 450 Series Steering Control Units
2
See Note Below (lower right)
Cast
End
Cap
Special Tools Available
600057-000 Spring Installation Tool
5422-000 12 Point Drive Socket ( 5/16 in.) — -001
64489-000 6 Point (E10) Torx Drive Socket ( 5/16 in.) — -002
Note: Current -002 uses a Hex Head bolt – 1/2 inch across flats
O-ring Groove
Cap Screws 12 Pt. Drive No. 5389-XXX, Spacer Plate 7970, and End
Cap, 8438 are -001 Parts. If any one of these parts needs replacing, order
Kit listed in chart (below) by displacement. Kit parts will update your
steering control unit to -002 design level.
Note: When installing kit parts, gerotor outer ring will have to be turned
so the o-ring groove faces the end cap (gerotor star—if the spline is full
length ring and star can be turned together, but if star has a
partial spline turn ring only, this partial splined star must
remain unturned). Replacement spacer plate will have a
o-ring groove, position this groove toward gerotor.
O-ring Groove
3
4
73
6
9
12
5
3
23 22
9
31
30 10
8
17
1314 13 15 18 19 16
Previous Manual
Steering Check Valve
W
UVXYZ
11
12
11 11
Low Input Torque
Spring (4)/Spacer (2)
Package
Standard Input Torque
Spring (6)
Package
Note: All housing valves are factory adjusted on
assembled units to a code designation and are
not to be changed. This housing (with specified
valve pressure settings), the mating spool, and
the sleeve are not practical replacement parts.
Ref.
No. Description Ref.
No. Description Ref.
No. Description
16 Seal, 24,9 mm [.98 in.] ID
19 Ring, Retaining
18 Bushing, Seal Gland
15 Seal, 47,2 mm [1.86 in.] ID
17 Seal, Quad Ring, 26,7 mm [1.05 in.] ID
13 Bearing Race
14 Bearing, Needle Thrust
23 Pin, Roll, 34,92 mm [1.375 in.] Length
22 Ball, 6,35 mm [.250 in.] OD
8 Housing
9 Sleeve, Control/Spool, Control
11 Spring, Centering
12 Spring, Spacer
Pin, Centering
3 Seal, 72,6 mm [2.86 in.] ID
6 Plate, Spacer
7 Drive
4 Gerotor
5 Spacer
1 Cap Screw, Hex Head
10
2 Cap, End 30 Ball, Check
31 Pin, Roll, 40,00 mm [1.575 in.] Length
V
W
X
YSeal — 9,2 mm [.36 in.] ID
ZScrew, Set
Seat, Check Ball
U
Seal — 7,6 mm [.30 in.] ID
Ball, Check
Retainer, Check Ball
*