PROPEL AND VIBRATORY VALVE TESTS AND ADJUSTMENTS - CONTINUED
STABILIZED CONTROL VALVE SPOOL NEUTRAL ADJUSTMENT
Prior to controlling the hydraulic servo, oil from the charge pump must control the spool of the stabi-
lized control valve.
Peform the following test to verify valve spool neutral setting is correct.
Hydraulic Servo Neutral Adjustment must be completed before performing this Stabilized Control Valve
Spool Neutral Adjustment. This is done to ensure that neutral (mechanical center) position of servo pis-
ton and swash plate is correct.
Remove two stabilized control valve end covers (26).
Leave springs and shim out for adjustment purposes.
Remove two pistons (27) with springs (28) and shim (29) from end covers (26).
Install pistons (27) back into stabilized control valve end covers (26).
Install two stabilized control valve end covers (26) on the control valve body (30).