M977 Through M985 General Operating Procedures (Cont)
i. Drive on Highway.
Speed limits posted on curves reflect speeds that are
considered safe for automobiles. Heavy trucks with a
high center of gravity can roll over at these speed limits.
Use caution and reduce your speed below the posted limit
before entering a curve. Failure to comply may result in
vehicle crash and injury to personnel.
Do not move TRANSFER CASE shift lever when
vehicle is moving or when transmission is in gear.
Severe damage to drive line will result.
Set TRANSFER CASE shift lever (1) to HI.
Do step (2) for Non-FHTV model vehicles.
Do step (2.1) for FHTV model vehicles.
Push in button (2) and move transmission range selector (3) to D.
Set transmission range selector (3.1) to D.
Push in PARKING BRAKE control (4).
Maximum no-load governed engine speed is
approximately 2250 rpm. Do not let engine speed go
above this figure. Under full load, governed speed is
approximately 2100 rpm. If engine speed goes above
governed speeds, serious engine damage can result.
Slowly depress throttle treadle (5) until vehicle reaches desired speed.
Tachometer (6) should read 1650 to 2100 rpm.