Specifications

GOLDCUP CONTROLS SERIES 600
See Figure 6A
PUMP
Spring Guide Extension .308"
(7.82MM)
MOTOR
Spring Guide Extension .206"
(5.23MM)
TEST
3. Install thrust washers (1-9) over servo shaft and seat against the servo link.
4. Install O-ring (23-A) in housing (23).
5. Install O-rings (5) and (7) on interface between stroker housing (23) and cover (1).
Slip servo shaft assembly through the bore, and install screws (6). Torque to 25 lbs-ft.
(33.9 Nm). Check for free motion of shaft assembly. Remove shaft.
6. Install spool (12) into stroker body. Press dowel (9) into clamp (8) to .500"
(12.7mm) dimension shown. Install screw (4) in clamp. Slip clamp into body to
engage groove in spool (12). Slip shaft through the body and through the clamp.
7. Tighten the clamp only enough to hold the clamp snugly against the bushing, while
permitting the shaft to turn in the clamp with light force.
8. Install setscrew (30) in cover (28). For pump controls, set to .308" (7.82mm) inside
extension. For motor controls, set to 410" (10.4mm) inside extension and install two
nuts (31) locked together to maintain this dimension. Install nut (31), O-ring (32), plug
(27) and O-ring (26) on external extension.
9. Install O-ring (20) in cover (28) and mount on housing on opposite side from center-
ing assembly, (see chart below) with screws (29). Torque screws to 14 lbs-ft. (19 Nm).
10. For pump controls, hold a flat plate against the centering group end of the spool
bore. Position clamp such that the spool is flush with the edge of the bore when the
servo shoe is tangent to the corresponding dowel hole in the control face. Eliminate
end play and torque screw (4) to 72 in.-lb. (8 Nm), locking the clamp to the shaft.
Check for free motion.
For motor controls, hold spool (12) against the stop screw, (30) and tighten screw (4),
locating the servo shoe adjacent to the corresponding dowel hole in the control face.
Torque to 72 in.-lb. (8 Nm), locking the clamp to the shaft. Check for free motion.
11. Install spring guide (13) and spring (14) over screw (19). Install screw into adjust-
ment screw (18). Adjust to 2" compressed length on spring (14). Install 1/4-20 nut
(17).
12. Insert spring assembly in body (2). Adjust for correct extension of spring guide
beyond surface. (See below). Install O-ring (20) in locknut, and install acorn nut (16)
on screw (18).
13. Install O-ring (20) in body and place assembly on stroker body, according to chart
below:
14. Using screws (24) bolt end connection (2) onto body (23). Torque screws to 14
lbs-ft. (19 Nm).
15. Install O-ring (25), cover (21), and cover screws (22). Torque screws to 14 lbs-ft.
(19 Nm).
16. Place two spring washers (1-6), nested with the bent sections matching each
other, into the large hole in the servo link.
17. Place washer (1-10) against the spring washers.
18. Install O-ring (1-8) into groove in the remaining shear seal (1-7). Note: This shear
seal does not contain the two .094" radius scallops in the face. Place on top of wash-
er, (1-10). Position shear seal to match the lip on the servo link.
19. If control is to be tested on unit, install on control pad with gasket, nyltite washers
(12), and screws (10). Torque to 30 lb. ft. (40.8 Nm).
Connect servo source, adjustable to 450 psi (31 bar), to control port on hydraulic stro-
ker.
50
Note: The shear seal will fit in one position only. Otherwise one side will be held up
by the lip of the servo link. Shear seal (1-5) must be installed to face against the
cover plate. This shear seal differs from shear seal (1-7) in that the face surface is
machined with two .094" (2.4 mm) radius scallops.
Rotation & cont. mtg Centering group location
CW -- A See Fig. 6-A
CW - B Opposite to Fig. 6-A
CCW - A Opposite to Fig. 6-A
CCW - B See Fig. 6-A
Control mounting Centering group location
B See Fig. 6-A
A Opposite to Fig. 6-A