Adjusting engine RPM contact.

TM 9-2320-211-20-3-2

(3) Adjusting engine RPM contact.

(a) Preliminary procedure. Open tachograph. Refer to para 20-10b

(1), frame 1.

(b) Adjustment.

FRAME 1

NOTE

Warning indicator (1) should light at 2,300 rpm.

If during operation of truck, warning indicator (1) does not come on at

2,300 rpm, adjust as follows:

a. If warning indicator (1) comes on below 2,300 rpm, turn adjusting

screw (2) to the right.

b. If warning indicator (1) comes on above 2,300 rpm, turn adjusting

screw (2) to the left.

Close tachograph. Refer to para 20-10c (3), frame 4.

CAUTION

During road test, do not go faster or drive the truck

continuously at the maximum allowable speeds shown on

the truck instruction and caution data plate.

Road test truck. Refer to TM 9-2320-211-10. While driving truck, bring

engine speed to 2,300 rpm for a short time. Warning indicator (1) should

light. If indicator does not come on at rpm noted, adjust as given in

step (a) or (b).

END OF TASK

20-60