2001-2003 Honda TRX500FA Factory Service Manual, Page 397Get this manual
TECHNICAL FEATURES TORQUE AM PUFICAn ON The input reaction force torque from the engine is transmitted to th pistons that are fixed within the rotating cylinderT his force is th en transferred through the cylinde he shaft (mechanical pow er train)When the ratio is 1:1 and the motor side swash plate exerts no react iv fo rce against the motor cylinder, th in put torque is trans ferred directly ou tput torque with no amplific ationWhen th angl of the swash plat is inc reased, the rea ctio force inc reases, amplifying he ou tput to rqueThe total output or ue is the sum of the input react ion rce torq ue and hydraulic utp ut torque
DISTRIBUTOR VAL VES
The hydrau lic flu id is tr ansferred between the pump and ot or piston cham be rs by the sp rue- type istri butor va lve arrange radiall aro und the shaftThe pump-side and otor-side distri bu to valves are eccent rically arr ang ed the shaft and are aligned to time the transf er of low-pressu re and high- ressure flu id in tune with the di rection and inclination of the pump and motor sw ash platesAs the cy li nder rotates, the eccentrically arrange valves slide in and out of the cy lin de body, opening and closing the pat hs in the body