Toro groundsmaster 455-D Service Manual

TEST NO. 4: Checking Steering Circuit Working Pressure or Relief Pressure
WORKING Pressure Check:
1. Make sure hydraulic oil is at normal operating tem-
p
erature by operating machine for approximately 10
minutes.
2. Lower cutting units, engage parking brake and stop
t
he engine.
3. Raise and support the seat to get access to hydraulic
test fittings.
4. Install a 5000 PSI gauge onto steering circuit quick
disconnect fitting.
5. Operate machine while monitoring gauge.
RANGE OF TESTER READINGS 0 - 1300 PSI.
RELIEF Pressure Check:
6. With engine running, turn the steering wheel until
heavy
resistance is felt indicating that the cylinder has
reached maximum stroke.
7. Momentarily hold steering wheel against resistance
and
read gauge.
TESTER READING TO BE 1200 ± 100 PSI.
1
Figure 13
1. Steering circuit test port
Hydraulic System
Groundsmaster
®
455-D Page 4 - 23 Testing

Toro groundsmaster 455-D Specifications

General

Brand	Toro
Model	groundsmaster 455-D
Category	Lawn Mower
Language	English