clockwise to shorten, or counterclockwise to lenghten
5 through 19 in numerical sequence from item 20.
control cable.
Reassemble in reverse order.
(2) Reinstall cable rod end of shaft and try throttle
(3) Cleaning, inspection, and repair.
lever position.
(a) Clean all parts in an approved cleaning
(3) Repeat steps (1) and (2) until adjustment is
solvent and dry thoroughly.
correct, then tighten locknut.
(b) Visually inspect all part for dents, cracks,
stripped threads, or other damage.
3-77. Primer Pump, Lines, and Fittings
(c) Repair by replacing defective components
a. For Engine Model 687C-18-ES.
or mounting hardware.
(4) Service. Service fuel filter as directed in
(1) Removal and installation. Refer to figure 3-64
and remove primer pump in numerical sequence. Install
b. Fuel Filter on Engine Model D333TA.
in reverse order.
(2) Cleaning, inspection, and repair.
(1) Removal and installation. Refer to figure 3-62
(a) Clean all parts in an approved cleaning
and remove fuel filter. Install in reverse order.
(2) Disassembly and reassembly. Refer to figure
solvent and dry thoroughly.
(b) Visually inspect for bent or clogged fuel
order.
lines, burs, or stripped threads.
(3) Cleaning, inspection, and repair.
(c) Repair by removing burs, replacing
(a) Clean all parts except pressure gage and
damaged or defective hardware or replacing a defective
inner pump.
switch, and filter element which is discarded, in an
b. For Engine Model D333TA.
approved cleaning solvent and dry thoroughly. Wipe
gage and switch clean with a rag dampened in cleaning
(1) Removal and installation. Refer to view A of
solution, then wipe dry.
(b) Visually inspect all parts for excessive
Install in reverse order.
(2) Disassembly and reassembly. Refer to view
wear, cracks, dents, or stripped threads. Test continuity
B of figure 3-65 and disassemble the primer pump in
of low fuel pressure switch. Test fuel pressure gage with
numerical sequence. Reassemble in reverse order.
controlled air pressure.
(3) Cleaning, inspection, and repair.
(c) Repair by replacing damaged, defective,
(a) Clean all parts in an approved cleaning
or worn parts. Install new filter element at reassembly.
solvent and dry thoroughly.
(4) Service. Service fuel filter as directed in
(b) Visually inspect for burred threads, weak
spring, damaged seals, and bent or clogged fuel lines
(tubes).
3-76. Governor Throttle Control Linkage
(c) Repair by replacing defective items.
remove governor throttle control linkage in numerical
3-78. Engine Shutoff Control
sequence. Install in reverse order.
b. Cleaning, Inspection, and Repair.
remove items in numerical sequence, and remove
(1) Clean all parts except flexible control cable in
engine shutoff control. Install in reverse order.
an approved cleaning solvent and dry thoroughly. Wipe
b. Cleaning, Inspection, and Repair.
housing and rod ends of control cable clean with rag
dampened in cleaning solvent, then wipe dry.
(1) Clean all parts in an approved cleaning
(2) Visually inspect mounting hardware for
solvent and dry thoroughly.
stripped threads or other defects. Move flexible control
(2) Visually inspect all hardware for burred or
through housing to check freedom and ease of
stripped threads, test that flexible control pulls through
movement.
Inspect housing for dents or other
housing easily (does not bind), and that knob is
deformation.
serviceable.
(3) Repair by replacing defective items. When
(3) Repair by replacing defective hardware or
housing of control cable is deformed and binds control,
flexible control.
replace the flexible control.
c. Adjustment. The flexible control is adjustable at
3-79. Blower Adapters (For Engine Model 678C-18-
either engine or throttle lever end. When throttle lever
ES).
is not correctly positioned on quadrant, at idle or high
speed, adjust as follows:
(1) Remove cotterpin and pin from rod end clevis
3-74
