Procedure for Cutting Deck Circuit Pressure Test
Make sure hydraulic oil is at normal operating tem-
GM 4500--D
1
1.
peraturebyoperatingthemachineforapproximatelyten
(10)
minutes. Make sure the hydraulic tank is full.
2.
Park machine on a level surface with the cutting
decks lowered and off. Make sure engine is off and the
parking brake is engaged.
2
3.
Raise hood to allow access to deck control manifold.
FRONT
CAUTION
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.
Figure 41
Test port G1 (decks 2, 3, & 5)
Test port G3 (decks 1 & 4)
1.
2.
4.
Install 5000 PSI (350 bar) pressure gauge with hy-
draulic hose attached to deck control manifold test port
for the cutting deck circuit to be tested (Fig. 41 or 42).
GM 4700--D
5.
at idle speed. Check for hydraulic leakage and correct
before proceeding with test.
After installing pressure gauge, start engine and run
1
CAUTION
2
FRONT
Keepawayfromdecksduringtesttopreventper-
sonal injury from the cutting blades.
Figure 42
6.
cutting decks.
Move throttle to full speed (2870 RPM). Engage the
1.
2.
Test port G1 (decks 2,3,5,7)
Test port G3 (decks 1,4,6)
7.
Watch pressure gauge carefully while mowing with
the machine.
#4
Deck
#1 Deck
#5 Deck
8.
3500
Cutting deck circuit pressure should be from 1000 to
PSI (69 to 241 bar) and will vary depending on
mowing conditions.
9.
Disengage cutting decks. Shut off engine. Record
test results.
10.After
from manifold test port.
testingiscomplete,disconnectpressuregauge
#
2
#3
Deck
#
(GM4700)
6 Deck
#7 Deck
(GM4700)
Deck
11.
Lower and secure hood.
CUTTING DECK LOCATIONS
Figure 43
Groundsmaster 4500--D/4700--D
Page 4 -- 51
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 30857, Toro Groundsmaster 30858, Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
| Download File |
|
| Document Type | Service Manual |
| 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)