Procedure for Traction Circuit Reducing Valve (PR)
Pressure Test
1
1.
perature by operating the machine for approximately 10
minutes. Make sure the hydraulic tank is full.
Make sure hydraulic oil is at normal operating tem-
2.
decks lowered and off. Make sure engine is off and the
parking brake is applied.
Park machine on a level surface with the cutting
2
CAUTION
Figure 29
1.
4WD control manifold
2.
Pressure test port
Prevent personal injury and/or damage to equip-
ment. Read all WARNINGS, CAUTIONS and Pre-
cautions for Hydraulic Testing at the beginning
of this section.
1
3.
4WD control manifold under radiator (Fig. 29).
Connect a 1000 PSI (70 bar) gauge to test port on
4.
(2870
Start the engine and put throttle at full engine speed
RPM). Make sure that transport/4WD switch is in
the 4WD position.
2
5.
traction pedal in the reverse direction. While pushing
traction pedal, look at pressure reading on gauge:
Siton seat,apply brakes fully andslowly depress the
Figure 30
1.
Manifold: front side
2.
Reducing valve (PR)
GAUGE READING TO BE approximately 650 PSI
(45
bar).
6.
7.
side of the 4WD control manifold (Fig. 30). Adjustment
of this valve can be performed as follows:
Stop engine and record test results.
Pressure reducing valve (PR) is located on the front
NOTE: Do not remove the pressure reducing valve
from the hydraulic manifold for adjustment.
A. To increase pressure setting, remove cap on re-
ducing valve and turn the adjustment socket on the
valve in a clockwise direction. A 1/8 turn on the sock-
et will make a measurable change in pressure set-
ting.
B. To decrease pressure setting, remove cap on re-
ducing valve and turn the adjustment socket on the
valve in a counterclockwise direction. A 1/8 turn on
the socket will make a measurable change in pres-
sure setting.
C. Recheck pressure setting and readjust as need-
ed.
8.
When testing is completed, disconnect pressure
gauge from test port.
Groundsmaster 4000--D
Page 4 -- 41
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 30412, Toro Groundsmaster 4000 D |
| Download File |
|
| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)