TM 9-2350-277-20-2
ADJUST THROTTLE VALVE (TV) MODULATOR — Continued
0213 00
14. Remove quick-disconnect fitting (1) from elbow (2), hose (3) from quick-disconnect fitting (1), and pressure gauge (4)
from hose (3). Stow in kit.
15. Apply a light coat of sealing compound to male threads of pipe plug (5), and install pipe plug in elbow (2).
END OF TASK
TESTING
FIELD OPERATIONAL TEST
NOTE
Use judgment in evaluating speedometer readings by considering the variables that may effect
the speedometer.
A cable driven speedometer can be affected by temperature and moisture, amount of bend in
the cable, age, number of miles on the carrier, amount of lubricant used, and manufacturing
tolerance error of ± 5 percent. All of these possibilities can result in speedometer lag (a reading
slower than actual speed during acceleration).
The angle in which the driver looks at the speedometer can cause a 1 to 2 mile per hour error/
difference. The height of an individual, seat height, or angle could account for inconsistency in
speedometer readings. The higher the driver’s vantage point, the more he tends to read below
the actual speed.
If the transmission shifts smoothly and reaches top speed (30 to 39 mph (48 to 63 kph)) without
lagging during wide open throttle tests, consider the adjustment complete even if the
speedometer reading is somewhat outside the limits shown in the following steps.
1.
Operate the carrier (see your -10). Drive the carrier on straight, level terrain with shift lever in the 1-4 position.
Accelerate carrier with accelerator pedal fully depressed (wide open throttle). Verify that the following transmission
shifts occur at the speeds shown:
Upshift 1 to 2
7 mph (11 km/h) min
Upshift 2 to 3
18 mph (29 km/h) max
0213 00-5
