OPERATION 205 T310MLR TRANSMISSION RATIOS Gear (Main Box)
LO Range
HI Range
Reverse
LOLO
27.30
23.96
LO
13.90
12.22
1/5
7.45
1.94
6.54
2/6
5.33
1.39
4.67
3/7
3.83
1.00
3.37
4/8
2.73
0.71
2.40
Preferred Method for Engaging T310M or T310MLR High Range Gear for Output Shaft Driven Power Take-Off Operation After positioning the vehicle for power take-off operation: 1. Shift the transmission to NEUTRAL. 2. Engage power take-off drive. 3. Move range selector to HI range. 4. Disengage engine clutch. 5. Select "tenth" gear (8 on the shift marker plate) for T310M or T310MLR. 6. Engage clutch when power take-off operation is desired.
CAUTION When the truck is stationary, do NOT shift into HI range and then start moving the truck. Damage to the synchronizer may result.
MACK T313-T313L-T313LR Shifting Instructions
CAUTION Make sure air pressure is at least 90 psi and unit is at operating temperature before making range shifts. Always start in LO range. This also applies to dynamometer testing. When the truck is stationary, do NOT shift into HI range and then start moving the truck. Otherwise, damage to the synchronizer may result.
