New Holland WorkMaster 50 Service Manual page 217

Front axle system - Powered front axle
Four-Wheel Drive (4WD) axle - Overview
The tractor has a centrally pivoting front axle with the pivot and the drive shaft coaxial with the longitudinal axis of the
tractor. The drive shaft has no universal joints.
The differential has two planet pinions; drive is transmitted to lateral epicyclic final drive units (installed on the wheel
hubs) through universal joints which require no maintenance.
Front to rear axle ratio
NOTE: On tractors equipped with FWD (Front Wheel Drive) the front to rear axle ratio is critical and must be main-
tained for safe and efficient use of the tractor. This ratio applies to all available tire options. Following is a list of
problems that may occur if the front to rear axle ratio is not maintained:
• Engine will lug down or stall when operating on hard surfaces.
• The front wheel drive lever will not remain in the engaged position, or is difficult to disengage.
• Failure of the drive line gears.
• Failure of the front axle, ring and pinion gears.
• Premature tire wear.
47866583_ 02/12/2015
25.1 [25.100] / 8