202 OPERATION
C0029347
Ratios Gear (Main Box)
LO
HI
1/6
13.81
2.67
2/7
10.05
1.94
3/8
7.18
1.39
4/9
5.17
1.00
5/10
3.75
0.73
R/R
14.73
2.85
MACK T310M, T310ME and T310MLR 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.