TM-9-2320-279-10-2
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
OPERATOR’S MANUAL VOLUME 2 OF 2
DECEMBER 1998
CHANGE 3
TM-9-2320-279-10-2 - Page 26 of 819
1-30. EQUIPMENT
TM 9-2320-279-10-2
Equipment Differences and Technical Data (Cont)
Table 1-4. M984E1 Equipment Data (Cont)
Model
M984E1
Item
ELECTRICAL SYSTEM (CONT)
Battery Reserve Capacity (each, at 80°F, 27°C):
180
minutes
Battery Cold Cranking Amps (each, at 0°F, - 18°C):
575
CCA
M984E1
Battery Amp Hours (each, at 20 hour rate):
100 amp
TRANSMISSION
Make:
Allison
Model:
HT740D
Type:
Automatic
M984E1
Number of Forward Speeds:
4
Number of Reverse Speeds:
1
TRANSFER CASE
Make:
Oshkosh
Model:
55000
M984E1
Type:
Air operated front tandem disconnect
Ratios:
98:1 and 2.66:1
AXLES
Front Tandem
Make:
Oshkosh/Eaton
Differential Carrier Model Nos.:
No. 1 axle-RS480
No. 2 axle-DS480-P
Maximum Load Capacity:
30.000 lb (13 600 kg)
Maximum Steering Angle:
32 degrees
Rear Tandem
Make:
Eaton
Differential Carrier Model Nos.:
No. 3 axle-DS650-P
No. 4 axle-RS650
M984E1
Maximum Load Capacity
65.000 lb (29 500 kg)
BRAKE SYSTEM
Actuation:
Air
Number of Brake Chambers:
8
Pressure Range:
60 - 120 psi (314 - 827 kPa)
1-12
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