TM 9-2320-279-10-1
Change 8
2-63
Table 2-1. Preventive Maintenance Checks and Services for Models M977 thru M985E1
Location
Item
No.
Interval
Item to
Check/
Service
Crewmember
Procedure
Not Fully Mission
Capable If:
DRIVER
49
Weekly
Tires
Continued
TIRE PRESSURES (Cont)
Cross
Cross
Sandy
Highway
Country-Dry
Country-Wet
Terrain
M985
Standard or XZL Tire
90 psi
50 psi
40 psi
40 psi
(621 kPa)
(345 kPa)
(276 kPa)
(276 kPa)
Sand Tire
100 psi
40 psi
(690 kPa)
NA
NA
(276 kPa)
M977 Rear
Standard or XZL Tire
83 psi
47 psi
37 psi
37 psi
(572 kPa)
(324 kPa)
(255 kPa)
(255 kPa)
Spare Tire
(all models)
Standard or XZL Tire
100 psi
100 psi
100 psi
100 psi
(690 kPa)
(690 kPa)
(690 kPa)
(690 kPa)
Sand Tire
100 psi
100 psi
(690 kPa)
NA
NA
(690 kPa)
OPERATING SPEEDS
Cross
Cross
Sandy
Highway
Country-Dry
Country-Wet
Terrain
Maximum Speed
(all models except
M984A1 when towing
another vehicle)
Standard Tire
55 mph
40 mph
20 mph
20 mph
(88 km/h)
(64 km/h)
(32 km/h)
(32 km/h)
Sand Tire
55 mph
20 mph
(88 km/h)
NA
NA
(32 km/h)
M984A1 (when towing
another vehicle)
Standard Tire
15 mph
15 mph
15 mph
15 mph
(24 km/h)*
(24 km/h)
(24 km/h)
(24 km/h)
Sand Tire
15 mph
15 mph
(24 km/h)*
NA
NA
(24 km/h)
* Operation at speeds over 15 mph (24 km/h) on paved roads
can be achieved when the operator determines that the vehicle
being towed and the terrain allow for safe operation. Under no
condition can speeds exceed 35 mph (55 km/h) on paved
roads and 15 mph (24 km/h) off paved roads.
