Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual

Procedure for Cutting Deck Gear Pump Flow Test
IMPORTANT: Do not  fully restrict oil  flow through
tester. In this test, the flow tester is positioned be-
fore the relief valve. Pump damage can occur if the
oil flow is fully restricted.
NOTE:  Overaperiodoftime,thegearsandwearplates
in the gear pump can wear. A worn pump will by--pass
oilandmakethepumplessefficient.Eventually,enough
oillosswilloccurtocausethecuttingdeckmotorstostall
under heavy  cutting  conditions. Continued  operation
with a worn,  inefficient pump can generate  excessive
heat and cause damage to the seals and other compo-
nents in the hydraulic system.
8.  Watch pressure gauge carefully while slowly closing
the flow control valve until 2000 PSI is obtained. Verify
with a phototac that the engine speed is 2400 RPM.
9.
approximately 14 GPM. Shut off engine. Record test re-
For  a  normal pump,  gear  pump  flow  should  be
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-
sults.
10.If
measuredflowislessthan12GPMorifapressure
of 2000 PSI cannot be obtained, check for restriction in
thepumpintakeline.Iflineisnotrestricted,removegear
pump and repair or replace as necessary.
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingdeck
11.
Disconnect flowtesterfromhydraulic  hoseandman-
ifold port. Reconnect hose to the manifold.
CAUTION
12.Repeat
test for second pump section if required.
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.
TO OIL COOLER
RIGHT
FRONT
1
3.
tested. Disconnect hydraulic hose at deck manifold port
(P1) (Fig. 36).
Locate deck manifold  for gear pump section  to be
3
4.
series with  the the  disconnected hose  and hydraulic
manifold port (P1).
Install tester with pressure gauges and flow meter in
4
2
5.
Make sure the flow control valve on the tester is
fully open.
Figure 36
6.
speed. Check for hydraulic leakage and correct before
proceeding with test.
After installing  tester, start  engine and  run at idle
1.
2.
Center deck manifold
Hyd. hose to front P1
3.
4.
LH wing deck manifold
Hyd. hose to side P1
IMPORTANT: Do not run engine at full speed during
testing.  At  full engine  speed,  cutting  deck  gear
pump output can exceed 15 GPM and cause tester
damage.
7.
Usingaphototac,  adjustenginespeedto  2400RPM.
Do not engage the cutting deck.
Groundsmaster 4100--D
Page 4 -- 47
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)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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One thought on “Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual

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