Hydraulic System Maintenance Instructions (Cont)
PRIMARY PUMP HYDRAULIC MOTOR CONTROL VALVE BRACKET, AND
CABLE BRACKET REMOVAL/INSTALLATION (M978) (CONT).
Remove two nuts (28),
lockwashers (29), screws (30), and
cable bracket (7).
Remove two nuts (31), screws (32),
and valve bracket (21).
There are two kinds of control valves. Model A has the top mounting screw on the left side
of the top elbow. Model B has the top mounting screw on the right side of the top elbow.
Both valves are installed the same way. However, if one type of valve is replaced by the
other type, the mounting bracket, valve lever, clevis pin, and cotter pin must be replaced
also. Refer to TM 9-2320-279-24P for proper identification of parts.
Install valve bracket (1), two
screws (2), and nuts (3).
Install cable bracket (4), two
screws (5), lockwashers (6), and