TM 5-2420-224-20-2
AIR CYLINDER ADJUSTMENT (CONT)
4.
5.
6.
7.
8.
9.
10.
11.
NOTE
Turn
adjusting
n u t
toward
passenger side of vehicle to
increase engine rpm, or toward
driver side to decrease engine
rpm.
Turn adjusting nut (2) approximately 1/4-1/2
turn to increase or decrease engine rpm as
needed.
Repeat steps 2 thru 4 until 2000 rpm is
achieved.
Tighten nut (3).
Engage crane engine idle switch (4) and
check vehicle tachometer. Engine rpm should
be 1100 rpm.
NOTE
Perform steps 8 thru 10 only if
engine speed is not 1100 rpm.
Disengage crane engine idle switch (4).
NOTE
Turn cylinder plunger toward driver
side of vehicle to increase engine
rpm, or toward passenger side to
decrease engine rpm.
Loosen nut (5) and turn cylinder plunger (6)
approximately 1/4-1/2 turn to increase or
decrease engine rpm as needed.
Tighten nut (5).
Repeat step 2. If engine rpm is not correct,
repeat steps 3 thru 10.
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