Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual

Procedure for Counterbalance Pressure Test
Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately 10
minutes. Make sure the hydraulic tank is full.
C. To  decrease pressure  setting, turn the  adjust-
mentscrew onthevalve  inacounterclockwise  direc-
tion. A 1/8 turn on the screw will make a measurable
change in counterbalance pressure.
1.
D. Tighten  locknut to secure adjustment. After ad-
justment,  recheck  counterbalance  pressure.  Re-
adjust as needed.
2.
lowered and off. Make sure engine is off and the parking
brake is engaged. Remove console cover.
Parkmachineonalevelsurfacewiththecuttingdeck
9.
When  testing  is completed,  disconnect  pressure
gauge from test port.
CAUTION
4
3
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.
2
3.
Circuit Charge Pressure in this chapter).
Determine system  charge  pressure (see  Traction
4.
ance test port on manifold under console (Fig. 25).
Connect a 1000 PSI (70 bar)  gauge to counterbal-
1
5.
at idle speed. Check for hydraulic leakage and correct
before proceeding with test.
After installing pressure gauge, start engine and run
Figure 25
6.
with no load on the system. Do not engage the cutting
deck.
Operate the engine at full engine speed (2870 RPM)
1.
2.
Counterbalance test port
Counterbalance valve
3.
4.
Locknut
Adjusting screw
GAUGE READING TO BE 225 PSI (15.5 bar) over
system charge pressure (e.g. if charge pressure is
250
PSI (17.2 bar), counterbalance pressure should
be 475 PSI (32.7 bar)).
7.
8.
Stop the engine and record test results.
Adjustment of the counterbalance valve can be per-
formed as follows:
NOTE:  Do not  remove the  counterbalance  valve
from the hydraulic manifold for adjustment.
A.  Loosen locknut  on counterbalance  valve  (Fig.
25).
B.  To increase  pressure setting,  turn the  adjust-
ment screw on the valve in a clockwise direction. A
1/8
turnonthescrewwillmakeameasurablechange
in counterbalance pressure.
Groundsmaster 4100--D
Page 4 -- 37
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 298 pages
Document TypeService Manual
LanguageEnglish
Product BrandToro. 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)
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One thought on “Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual

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