charge relief valve and valve seat in the traction
pump (see TractionPumpService intheService and
Repairs section of this chapter). Also, consider a
worn or damaged gear pump (P3) (see Gear Pump
(P3) Flow Test in this section).
CAUTION
Before opening hydraulic system, operate all hy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
Relieving Hydraulic System Pressure in the Gen-
eral Information section of this chapter.
NOTE: If gear pump (P3) is worn or damaged, both
charge circuit and steering circuit will be affected.
12.After
charge pressure testing is completed, make
sure that engine is not running and then relieve hydrau-
lic system pressure (See Relieving Hydraulic System
Pressure in the General Information section of this
chapter). Remove pressure gauge and tee fitting from
hydraulic tubes. Install oil filter to machine.
5.
Thoroughly clean ends of hydraulic tubes that con-
nect to the oil filter (Fig. 26). Disconnect hydraulic tubes
from oil filter adapter. Remove two (2) flange head
screwsthatsecureoilfilteradapter toframe andremove
oil filter and adapter assembly from machine.
13.Lower
and secure operator seat.
6.
Install tee fitting with 1000 PSI (70 bar) pressure
gauge in place of the removed hydraulic filter assembly.
7.
ing wheel is stationary and parking brake is engaged.
Make sure that traction pedal is in neutral, the steer-
8.
draulic leakage from test connections and correct be-
fore proceeding with test.
Start engine and run at idle speed. Check for any hy-
2
3
1
9.
Place throttle to full speed (3200 RPM) and monitor
pressure gauge on tester to determine no load charge
pressure. Record test results.
GAUGE READING TO BE approximately 200 to
250
PSI (13.8 to 17.2 bar)
Figure 26
1.
2.
Hydraulic tube
3.
Hydraulic tube
10.Next,
determine charge pressure under traction load
Oil filter / filter adapter
byoperatingthemachineinadirectforwardandreverse
direction (not steering). Make sure that engine is run-
ning at full speed (3200 RPM). Apply the brakes and
pressthetractionpedalintheforwarddirection andthen
to reverse while monitoring the pressure gauge. Stop
engine and record test results.
2
3
4
5
GAUGE READING TO BE approximately 150 to
6
250
PSI (13.8 to 17.2 bar)
11.
Compare measured charge pressure from step 9
with pressure from step 10:
1
A. If charge pressure is good under no load (step 9),
but drops below specification when under traction
load (step 10), the piston pump should be suspected
of wear and inefficiency. When the pump is worn or
damaged, the charge system is not able to replenish
losttraction circuitoilduetoexcessive leakage inthe
worn pump.
RIGHT
FRONT
Figure 27
4.
5.
6.
1.
2.
3.
Traction pump
Plug
O--ring
Shim kit
Spring
Charge relief poppet
B. If there is no charge pressure, or pressure is low,
check for restriction ingear pumpintake line.Inspect
Reelmaster 5010 Series
Page 4 -- 31 Rev. B
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
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| Download File |
|
| Document Type | Catalog, Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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Lawn and Garden readers have rated Toro 06148SL Rev B Reelmaster 5210 5410 5510 5610 Service Manual 4.0 out of 4.0 based on 1 product reviews. i hope is going to work