TM 9-2320-211-10-1
Trucks covered by this rnanual should be operated within the following rpm
1.
limits, as shown on tachometer ( 1) , or tachograph (2) :
Lowest engine rpm recommended for
(a) 1400
operating under load.
Engine rpm recommended for downshifting.
(b) 1600 to 1800
(e) 1800 to 2400
Engine rpm recommended for cruising.
(d) 2600
Highest engine operating rpm when under
load in any gear.
ON LATER MODEL
M52A2 TRACTORS
ON ALL TRUCKS EXCEPT
LATER MODEL M52A2
TRACTORS
TA
053856
4-57