Traction System Operation Testing
Because the Groundsmaster 7200/7210 traction sys-
tem uses two (2) separate circuits, it can be difficult to
identify which circuit is causing a problem and what hy-
draulic tests should be performed. Use the following op-
eration tests and suggestions before performing the
hydraulic tests described in this section.
3. Wheel speed should be the same on both rear
wheels. Make sure hydraulic oil is at normal operating
temperature. With machine jacked up off the ground and
securely supported with jack stands, have an operator
in the seat move the traction control levers to the full for-
ward speed. Using a phototac, check the rotational
speed of both rear wheels. The wheel speed should be
from 190 to 200 RPM for both rear wheels.
1.
If machine does not track in a straight line, look for a
problem with components that affect the weaker traction
side of the machine. During operation, the machine will
steer toward the weaker side of the traction system. Be-
cause piston pump swash plate is controlled by traction
control lever movement, if one lever rotates its swash
plate more than the other lever, the machine will not
track in a straight line.
4. If any of these operation tests suggest a traction sys-
tem problem, check the following before performing hy-
draulic tests.
A. Parking brake is dragging.
B. Traction control lever is not adjusted correctly.
C. Transmission bypass valve is not seated.
2.
Drive the machine up a moderate incline, stop the
engine, place the traction control levers in the neutral
locked position and allow the transmission to hold the
machine in place (parking brake not applied). The ma-
chine should remain stationary on the incline or drift
slowly backwards in a straight line. If one of the trans-
mission traction circuits is faulty, the machine will roll
backwards toward the weaker traction circuit.
D. Check oil level in the hydraulic tank to make sure
that oil level is correct.
Groundsmaster 7200/7210
Page 4 – 25
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 7200, Toro Groundsmaster 7210 |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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My mower is a TORO 7210.
Start fuse defection. Why ?