New Holland WorkMaster 50 Service Manual page 126

Mechanical transmission - Overview
8+8 Synchro shuttle
The transmission has eight forward and eight reverse
gears.
WARNING
Avoid injury! Always do the following before
lubricating, maintaining, or servicing the ma-
chine.
1. Disengage all drives.
2. Engage parking brake.
3. Lower all attachments to the ground, or
raise and engage all safety locks.
4. Shut off engine.
5. Remove key from key switch.
6. Switch off battery key, if installed.
7. Wait for all machine movement to stop.
Failure to comply could result in death or se-
rious injury.
To select any one of the four forward gears or one reverse
gear use the main gearshift lever (1). To select the high
range or low range, which gives double the number of
available gears use Hi-Low selector lever (2).
To change gear range, depress the clutch pedal. Stop the
tractor and move the Hi-Low selector lever backward (for
high) or forward (for low).
To change the gears in the selected range, depress the
clutch pedal and shift main gear lever in the normal way
To select reverse gear (R), first stop the tractor.
NOTE: A safety start switch prevents operation of the
starter motor unless the transmission range lever is in
neutral position (N).
NOTE: If it is necessary to tow the tractor, the Hi-Low
selector and both main gearshift levers must be in neutral.
The transmission has an input shaft called drive shaft (1), range shaft (2), driven shaft (16) and pinion shaft (15). 1st
(4), 2nd (5) gears are integral part of the drive shaft. 3rd (6), 4th (7) gears are integral part of driven shaft. All gears
of input shaft and driven shaft are constant mesh. High gear is assembled in driven shaft while, low gear (8) is fitted
on the pinion shaft. Low drive gear (12) is part of the range shaft and is in constant mesh with low gear on the pinion
shaft.
Transmission - Mechanical transmission
W0047A
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GNIL14TR00513AC
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GNIL14TR00785AA