1. ADJUST CENTRAL PROCESSING UNIT (CPU).
2. ADJUST PISTON PRESSURE CHANNEL.
a. Connect digital voltmeter to CPU main board.
Black (-) lead to test point MP15.
Special care must be taken before
disconnecting hydraulic lines from
Red (+) lead to test point MP4.
transducers. Make sure lift cylinders
are FULLY retracted, otherwise injury
b. Adjust P4 to obtain a reading of .500 Vdc (500
and damage can occur.
a. Disconnect pressure lines (8) and (9) from
pressure transducers (10) and (11).