Deck Motor Efficiency -- Case Drain Test - Toro Groundsmaster 3505-D Service Manual

Deck Motor Efficiency - - Case Drain Test (Using Tester with Pressure Gauges and Flow
Meter)
TO HYDRAULIC
MANIFOLD PORT (D1)
FROM HYDRAULIC
MANIFOLD PORT (M1)
TO HYDRAULIC
MANIFOLD PORT (M2)
NOTE: Over a period of time, a deck motor can wear in-
ternally. A worn motor may by--pass oil to its case drain
causing the motor to be less efficient. Eventually,
enough oil loss will cause the deck motor to stall under
heavy cutting conditions. Continued operation with a
worn, inefficient motor can generate excessive heat,
cause damage to seals and other components in the hy-
draulic system and affect quality of cut.
Hydraulic System
LEFT
DECK MOTOR
RIGHT
DECK MOTOR
REAR
DECK MOTOR
# TOR4077
NOTE: One method to identify a possibly bad deck mo-
tor is to have another person observe the machine while
mowing in dense turf. A bad motor will run slower, pro-
duce fewer clippings and could cause a different ap-
pearance in the turf.
Page 4 - - 42
HYDRAULIC
TESTER
MEASURING
CONTAINER
Working Pressure
Low Pressure
Return or Suction
Flow
Groundsmaster 3505--D