TM 9-4310-397-14
4-64. SPEED CONTROL LINKAGE ADJUSTMENT AND REPLACEMENT.
This task covers:
a.
Adjustment
b.
Removal
c.
Installation
INITIAL SETUP
Tools:
Equipment Conditions:
General Mechanics Tool Kit
Open control panel and curbside doors.
Item 1, Section III, Appendix B
a.
Adjustment.
WARNING
Engines have fast moving parts that can injure hands, fingers, etc. Take
special care while in operation. Engine parts, particularly the exhaust
system, can be very hot and cause severe burn. Do not touch until engine
is shut down and cooled off. Avoid spilling fuel or oil on hot engine parts
which could result in a fire.
NOTE
Adjustments for both engine speed and air pressure must be preformed in sequence and
always done together.
(1)
Start engine per paragraph 2-4, b.
(2)
Check idle speed. Tachometer reading should be between 1,000 and 1,300 RPM. Adjust speed linkage to
correct for either low or high speed.
(3)
Adjust speed control linkage as follows:
(a)
Loosen four hex nuts (Figure 4-69, 1) and (2) on control rod (5).
(b)
To increase speed, turn nut back to decrease threads and increase travel on rod. When speed is
corrected, tighten nuts (1) and (2).
(c)
To decrease speed, increase threads forward to decrease rod travel. When speed is corrected,
tighten nuts (1) and (2).
4-163
