Toro 03126SL Rev C Service Manual Serial No 240000001 Above Workman 3000 4000

Procedure  for High  Flow Hydraulic  Kit  (Optional)
Gear Pump Flow and System Relief Pressure Test
8.  With Kit switch still  in the ON position, watch tester
pressure gauges while slowly closing flow control valve
on the tester until 1500 PSI (103.4 Bar) is obtained  on
gauge. Verify  that pump  speed continues  to be   3000
RPM. Record flow meter reading.
1.
Make sure hydraulic oil is  at normal operating tem-
perature by operating the vehicle  for approximately 10
minutes.
GAUGE READING TO BE: Flow should be approxi-
mately 7.9 GPM (29.9 LPM) at 1500 PSI (103.4 Bar).
2.
Park vehicle on a level surface, raise and support bed
(if installed),  shut engine  off and  engage the  parking
brake. After turning engine off, operate all hydraulic con-
trols to relieve hydraulic system pressure.
9.  Open tester  flow control valve, turn Kit  switch OFF
and stop engine.
3.
is adjusted properly (see Kit Installation Instructions).
Make sure that drive belt for High Flow Kit gear pump
10.If pump flow specification is not met, inspect for:
A.  Slipping pump drive belt.
CAUTION
B.  Worn or stuck relief valve.
C. Pump suction line restriction.
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.
D. Gear pump needs to be repaired or replaced.
11.
To test High Flow Hydraulic system relief pressure:
A.  Make sure  flow  control valve  on  tester is  fully
open.
IMPORTANT: Make  sure that  the oil flow  indicator
arrow on the flow meter is showing that the oil  will
flow from the pressure coupler, through the  tester,
and into the return (tank) coupler (Fig. 19).
B.  Start engine  and depress  accelerator pedal  so
engine is running at high idle (3600 + 50 RPM). Turn
Kit switch ON.
4.
With  the  engine  off,   install  tester  with  pressure
IMPORTANT: Close  flow control valve on tester
only enough to get a system relief pressure read-
ing.
gauges and flow meter in series between the quick dis-
connect couplings. Make sure the tester flow control
valve is open.
C. Watch pressure gauge carefully while slowly clos-
ing the tester flow control valve until the relief valve
opens.
5.
necting the tester.
Make sure the Hydraulic Kit reservoir is full after con-
CAUTION
D. System  pressure should be approximately 2000
PSI (137.9 Bar) as the relief valve lifts.
E.  Open tester flow control valve, release accelera-
tor pedal to allow engine to return to low idle and turn
Kit switch OFF. Turn off vehicle. Record test results.
The engine must be running to perform hydrau-
lic tests. To guard against possible personal in-
jury, engage parking  brake and keep  clothing,
hands, feet,  face and  other parts  of the  body
away from fan and other moving parts.
12.If
relief pressure is incorrect, inspect for:
A.  Slipping pump drive belt.
6.
After installing  tester,  start engine  and run  at  idle
B.  Worn, stuck or out of adjustment relief valve.
speed. Turn hydraulic kit  switch ON and check for  hy-
draulic leakage  from connections. Correct before  pro-
ceeding with test.
13.Remove
tester from quick disconnect couplings.
7.
Adjust engine speed with accelerator pedal so High
Flow Kit gear pump speed is 3000 RPM (engine speed
approximately 3600  RPM). Verify  pump speed  with a
phototac.
Workman 3000/4000 Series
Page 9 – 23
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 302 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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Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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