Procedure for Cutting Deck Motor Case Drain
Leakage Test
6. Sitonseatandoperatetheengineatfullspeed(2870
RPM). Move PTO switch to ON.
NOTE: Over aperiod oftime,adeck motor can wear in-
ternally. A worn motor may by--pass oil to its case drain
causing the motor to be less efficient. Eventually,
enough oil loss will cause the deck motor to stall under
heavy cutting conditions. Continued operation with a
worn, inefficient motor can generate excessive heat,
causedamage toseals andother components inthehy-
draulic system and affect quality of cut.
7. While watching pressure gauge, slowly close flow
control valve on tester until a pressure of 1200 PSI (83
bar) is obtained.
NOTE: Use a graduated container, special tool
TOR4077, to measure case drain leakage (Fig. 38).
8.
Have another person measure flow from the case
drain line for 15 seconds, then move the PTO switch to
OFF. Open the tester flow control valve and stop the en-
gine. Record test results.
NOTE: One method to find a failing or malfunctioning
deck motor is to have another person observe the ma-
chine while mowing in dense turf. A bad deck motor will
run slower, produce fewer clippings and may cause a
different appearance on the turf.
TEST RESULTS: Flow less than 16 ounces (473
ml).
9.
is worn or damaged and should be repaired or replaced.
If flow is more than 16 ounces (473 ml), the motor
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-
10.After
testing is completed, disconnect tester from
motor and hose. Reconnect hose to thedeck motor.Re-
movecapfrommachinefitting andreconnect casedrain
hose.
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingdeck
11.
If required, repeat test procedure for other deck mo-
tors.
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.
1
3
NOTE: The wing deck motors are connected in series.
To isolate a faulty motor, both motors in the circuit may
have to be tested by starting with the left side motor first.
2
3.
Disconnect return hose from the motor to be tested
(Fig. 37). Install flow tester in series with the motor and
the disconnected return hose. Make surethe flowcon-
trol valve on tester is fully open.
4.
Disconnect the motor case drain hose (small diame-
Figure 37
ter hose) where it connects to the machine (not at the
motor).Putasteelcaponthefitting;leavethecasedrain
hose open (Fig. 38).
1.
2.
Deck motor (RH shown)
Return hose
3. Case drain hose
5.
speed. Check for hydraulic leakage and correct before
proceeding with test.
After installing flow tester,start engine and run atidle
CAUTION
Cutting deck blades will rotate with PTO switch
inONposition. Keepawayfromcutting deckdur-
ing test to prevent personal injury from rotating
blades. Do not stand in front of the machine.
Figure 38
Groundsmaster 4100--D
Page 4 -- 49
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 30413, Toro Groundsmaster Groundsmaster 4100 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 |
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At only 700mm wide the Mini Dumper is even at home on tight access
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