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OPERATION 211
The T310M is a range-shifted transmission which has 10 forward speeds.
There is a LO and HI auxiliary compound section controlled by an air-shift
selector on the shifter. This compound section is equipped with a synchronizer
to facilitate LO-HI range shifting. The T310M transmission also provides a
multi-speed reverse feature by means of reverse gearing in the compound
case which works in conjunction with LO-LO, first and second speed gears
in the main box. The air-shift selector must be moved to the R (REVERSE)
position in order to utilize the multi-speed reverse feature.
LO range provides six low ratios for six forward gears in the T310M. HI range
provides four additional forward gears which can be shifted in the standard
manner. Remember, however, to double-clutch when moving up or down
through the gears. For normal highway use, start in LO range, first gear
and shift through second, third and fourth. The LO-LO and LO positions
in LO range for this transmission are designed for use in off-highway and
slow-moving operations such as curb pouring, material spreading, heavy
load/steep grade. REVERSE is used in LO range for four reverse speeds.
Upshift —
Begin in first gear (shown as 1/5 on shift pattern diagram) with
air-shift selector in LO range. Upshift to second gear (2/6 on shift pattern
diagram) LO range in the normal manner (double-clutching). When ready to
upshift again, depress the clutch pedal and release the accelerator pedal in
the normal manner. Repeat this shifting pattern through the remaining gears
up to fourth speed (4/8 on shift pattern diagram). When maximum engine
RPM has been reached in fourth gear, flip the air-shift selector to HI range
(preselect), then double-clutch and shift to fifth gear. As the shift lever passes
through NEUTRAL, it will put the transmission in HI range. Continue to upshift
through normal sixth, seventh and eighth gears, while double-clutching.
Downshift —
Downshift as normal from eighth to seventh, sixth and fifth
in HI range (double-clutching between all gears). The next lower shift will
be to fourth gear LO range. While still in fifth gear, flip the air-shift selector
to LO range (preselect), then double-clutch and move the shift lever through
NEUTRAL to fourth gear. The move through NEUTRAL activates the air-shift
mechanism, this time to LO range. The next lower gear is third gear LO
range. Double-clutch down through the remaining gears to first gear LO range
as needed.
CAUTION
When the truck is stationary, do NOT shift into HI range and then start moving the
truck. Damage to the synchronizer may result.
Reverse is used in LO range only. To avoid transmission damage when
shifting Forward to Reverse or Reverse to Forward:
Summary of Contents for Granite GU Series
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Page 44: ...SAFETY INFORMATION 33 Advisory Label Locations On Vehicle Labels Found on Chassis C0029831 ...
Page 45: ...34 SAFETY INFORMATION C0028958 ...
Page 46: ...SAFETY INFORMATION 35 C0028959 ...
Page 47: ...36 SAFETY INFORMATION C0029013 1 Right Side Frame Rail 2 Hood Prop ...
Page 48: ...SAFETY INFORMATION 37 C0029014 ...
Page 49: ...38 SAFETY INFORMATION Labels Found on Driver Side Sun Visor C0029832 ...
Page 50: ...SAFETY INFORMATION 39 C0029016 ...
Page 58: ...SAFETY INFORMATION 47 C0029833 ...
Page 60: ...SAFETY INFORMATION 49 C0029834 ...
Page 62: ...SAFETY INFORMATION 51 C0029835 ...
Page 72: ...INSTRUMENTS AND CONTROLS 61 Panel B W3056238 ...
Page 81: ...70 INSTRUMENTS AND CONTROLS C0029141 ...
Page 82: ...INSTRUMENTS AND CONTROLS 71 Diagnostics W3036575 W3036576 W3036583 ...
Page 84: ...INSTRUMENTS AND CONTROLS 73 C0029144 ...
Page 113: ...102 INSTRUMENTS AND CONTROLS C0029240 C0029241 ...
Page 235: ...224 OPERATION C0029351 ...
Page 241: ...230 OPERATION C0029352 ...
Page 284: ...MAINTENANCE AND LUBRICATION 273 C0029851 C0029852 1 Towhook Access ...
Page 305: ...294 MAINTENANCE AND LUBRICATION C0029434 1 Front 2 Back ...
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