Install throttle position switch (35) on adjusting bar (39) and bracket (43) with capscrews (33), washers (34),
lockwashers (32), and nuts (31). Do not fully tighten nuts (31).
If removed, install carriage bolt (30) on bracket (28) with nut (29).
Install lever (27) on bracket (28) with washer (26) and cotter pin (25).
If removed, install eye bolts (23) on bracket (17) with washers (22) and nuts (21). Distance from front of
bracket (17) to center of eyes of eye bolts (23) should be 1-1/2 in. (3.8 cm).
Install idle switch (20) on bracket (17) with washer (19) and nut (18).
Install bracket (17) on throttle air cylinder (15) with screws (16) which are part of the throttle cylinder (15).
Install lever (27) with bracket (28) on throttle air cylinder (15) with capscrews (14), washers (13),
lockwashers (12), and nuts (11).
Adjust carriage bolt (30) so that button on idle switch (20) is fully depressed when throttle air cylinder lever
is fully rearward, then tighten nut (29).
Position throttle air cylinder (15), bracket (44), and oil sender and switch bracket assembly (10) to engine
mounting bracket, then secure components with capscrews (8), washers (9), lockwashers (7), and nuts (6).
Place lever of throttle air cylinder (15) in mid-stroke position (straight up and down), then adjust capscrew
(36) and throttle position switch (35) until roller of throttle position switch just contacts front of lever (28), see
Detail A. Tighten nuts (38), capscrews (40), and nuts (31) to secure throttle position switch in position.
Place fuel injection pump lever and lever of throttle air cylinder (15) fully rearward, adjust throttle rod (4) as
necessary, and connect throttle rod (4) to bracket (28) with capscrew (3), lockwasher (2), and nut (1).
Connect springs (5) to eye bolts (23) and bracket (52).
Install fitting (24) in rear of throttle air cylinder (15), and connect air line to fitting.
Connect electrical leads at idle switch (20) and electrical connector at throttle position switch (35).
Close drain valves on air reservoirs.
Perform test procedures for APC 100 to ensure shift points are correct, refer to Chapter Two, Section 3.
Install engine rear cowl, and top panel and door assembly, refer to Engine Hood Installation procedures.
With normal air pressure in the system, actuate the foot throttle to various positions and observe that the throttle
cylinder responds quickly, smoothly, and proportionately.
1. With foot throttle fully depressed and air pressure at cylinder port, there should be no noticeable leakage at
port connector, cylinder cover, control cylinder boot, or exhaust port of the throttle valve.
2. Leakage of not more than a 1 in. (2.54 cm) soap bubble in one second is permissible in above test. If
excessive leakage is present, repair or replacement of cylinder and valve is recommended.