Specifications

GOLDCUP CONTROLS SERIES 400
TEST
8. Install the servo shaft assembly into the control cover (11), engaging the pin in the
slot.
9. Install retaining ring (4) into the groove of the servo shaft extending through the
control cover.
10. Install spools (18) into the bores in the body. Note that reduced down diameters
must be to the outside, and spools must freely slip into the bores.
11. Install springs (20). Install O-rings (21) over plugs (22) and install plugs.
14. For the 4A control, install adjusting screws (23), nuts (24), O-rings (30), plugs (31)
and O-rings (25) into plugs (22).
15. Place two spring washers (27), nested with the bent sections matching each other,
into the large hole in the servo link.
16. Place washer (19) against the spring washers.
17. Install O-ring (7) into groove in the remaining shear seal (28). Note: This shear
seal does not contain the two .094” (2.4 mm) radius scallops in the face. Place on top
of washer (19). Position shear seal to match the lip on the servo link.
18. Install control over dowels, with gasket, (29), washers (6), and screws (2). Torque
to 30 lbs-ft. (40.8 Nm).
1. Connect lever to input shaft. With unit running, manually stroke the shaft. Do not
exceed 100 lbs-in. (11.3 Nm) torque on shaft. Pump shall follow the motion of the
input shaft.
Input shaft and cam shall return to center when the lever is released.
2. For 4A controls, set maximum stop screws for full displacement.
3. Remove plug from trimmer adjustment. Loosen locknut and adjust center position
with a screwdriver. Lock on zero stroke position. Stroke pump and release handle,
both sides of center. Pump shall return to zero displacement consistently.
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