Procedure for Logic (Counterbalance) Valve (LC1)
Pressure Test:
8. Lower cutting units. Shut off engine.
Disconnect test gauge with hose from manifold
9.
NOTE: If the counterbalance system is functioning, the
machine should normally settle slightly when theengine
is started.
block. Reconnect plug to the hydraulic manifold port
(G2).
1.
perature by operating the machine for approximately 10
minutes.
Make sure hydraulic oil is at normal operating tem-
1
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingunits
2
3.
Read Precautions for Hydraulic Testing.
4.
29
Remove plug from hydraulic manifold port (G2) (Fig.
and 30).
5.
port (G2).
Install test gauge with hydraulic hose attached to
Figure 29
2.
1.
Hydraulic manifold
Manifold port (G2)
CAUTION
Keepawayfromdecksduringtesttopreventper-
sonal injury from the cutting blades.
1
6.
50
Start engine and move throttle to full speed (3050 +
RPM). Do not engage or raise the cutting units.
7.
250
The standard counterbalance pressure should be
PSIwitharange of180to300psi.Adjustment ofthe
Logic valve (LC1) can be performed as follows:
Note:
Do not remove the Logic valve from the hydrau-
2
lic manifold for adjustment.
Figure 30
2.
A. Remove hex cap from logic valve (Fig. 31).
B. Loosen locknut.
1.
Hydraulic manifold
Manifold port (G2)
3
C. To increase pressure setting, turn the adjust-
mentshaftonthevalveinaclockwisedirection.A1/8
turn on the shaft will make a measurable change in
counterbalance pressure.
2
D. To decrease pressure setting, turn the adjust-
ment shaft on the valve in a counterclockwise direc-
tion. A 1/8 turn on the shaft will make a measurable
change in counterbalance pressure.
1
E. Tighten locknut. Check counterbalance pressure
and readjust as needed.
F. Replace hex cap to Logic valve (LC1).
Figure 31
1.
2.
Manifold assembly
Logic valve (LC1)
3.
Hex cap
Groundsmaster 3500--D
Page 4 -- 47
Hydraulic System (Rev. D)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3500 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)