Groundsman TMC46, Руководство оператора, Страница: 8 / 24

Page 7
TMC46 Technical Information
With reference to the colour coded illustration on Page 6 of the TMC46 Operators
Manual Booklet
Engine, Clutch, Belt & Chains
Honda GX200 parallel ¾” keyed shaft 6.5 HP engine fitted with a solid steel twin shoe
centrifugal clutch. The clutch is throttle lever activated and drives an ‘A’ section main drive V
-belt transmitting power from the engine to the input shaft pulley located on the far side of
the tee gearbox (yellow) The V-belt is tensioned by an adjustable jockey pulley which rides
on the inside V section tensioning the belt outward in its natural curvature rather than riding
on the back of the belt thereby minimising belt failure from splitting. The belt is easily
accessible for adjustment or replacement by removing the cover.
Ground Drive Assembly
The V belt driven input shaft runs through the sealed oil filled tee gearbox across the width
of the chassis driving a 30mm (1 ¼”) wide flat toothed belt to transmit power to the blade-
drive crankshaft. The worm-gear shaft extends downwards from the tee gearbox through the
worm tube casing transmitting power to the front wheel axle (blue) by engaging on a heavy
duty 160mm (6”) diameter bronze worm wheel. The worm gear drive is engaged and
disengaged by a remote gear lever via a direct linkage rod and activating cam within the
axle casing.
Front Axle Assembly & Rear Axle Assembly
The positioning of the wheel axles within the casing maximises traction, balance and blade
ground clearance. The rear axle (purple) is chain driven from the front axle (blue). The worm
gears and drive chain are enclosed and submerged in the oil filled casing for long life and is
virtually maintenance free.
Crank Assembly
The flat toothed belt transmits power from the tee gearbox output shaft via the lever
activated plunger-pin blade drive clutch to the blade drive crankshaft. The flat belt is quiet
running, extremely long lasting and requires no lubrication. It provides a cushion drive to the
cutter-blade helping prevent damage from stones or intrusions. The blade drive flat belt is
easily accessible for adjustment or replacement by removing the belt cover. The blade drive
crankshaft is fitted with two flywheel counter-balance weights which counteract the
vibrations generated by the oscillating blade drive mechanism.