TEST NO. 3: Checking Mowing Circuit Working Pressure or Relief Pressure
WORKING Pressure Check:
1. Make sure hydraulic oil is at normal operating
temperature by operating machine for approximately 10
minutes.
2. Lower cutting units, engage parking brake and stop
the engine.
3. Raise seat to get access to hydraulic test fittings.
Remove access cover from in front of auxiliary pump.
4. Install a 5000 PSI gauge onto mow circuit quick
disconnect fitting. Put gauge and hose through opening
below seat in front of auxiliary pump so gauge can be
observed while sitting on seat.
NOTE: Front axle shift lever must be in LO position for
cutting units to operate.
5. Operate machine while monitoring gauge.
RANGE OF TESTER READINGS 100 - 2640 PSI.
NOTE: Normal pressure during operation is 1500
2000 PSI. Gauge may spike higher during initial
engagement of cutting units.
RELIEF Pressure Check:
6. Lower center cutting unit to the ground.
7. Turn the engine OFF.
8. Use a substantial hardwood block inserted between
reel blades of center cutting unit to prevent rotation.
Center cutting unit motor is first in series from pump.
Stand clear of the reels during the following
procedures:
CAUTION
9. Place reel speed control knob at minimum speed.
10. Start engine and position throttle at idle.
11. Move cutting unit engagement switch into “MOW”
while monitoring gauge.
NOTE: It may be necessary to increase throttle slightly
to prevent engine from stalling.
TESTER READING TO BE 2540
±
100 PSI.
1
Figure 13
(Eaton pump)
1. Mow circuit test port
1
Figure 14
(Sundstrand pump)
1. Mow circuit test port (S/N 39999 & below )
1
Figure 14A
(Sundstrand pump)
1. Mow circuit test port (S/N 40001 & UP)
Testing
Page 4 - 26 Rev. A
Reelmaster
®
335-D
Содержание Reelmaster 335-D
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Страница 8: ...Safety Instructions Page 1 4 Reelmaster 335 D ...
Страница 12: ...Maintenance Charts Maintenance Charts Page 2 4 Rev A Reelmaster 335 D ...
Страница 13: ...Reelmaster 335 D Page 2 5 Rev A Maintenance Charts ...
Страница 14: ...Maintenance Charts Page 2 6 Rev A Reelmaster 335 D ...
Страница 80: ...Engine Page 3 62 Rev B Reelmaster 335 D 3500 D ...
Страница 85: ...Hydraulic Schematic Two 2 Wheel Drive TEST PORT 2000 PSI 138 BAR 2500 1600 RPM ...
Страница 86: ...Hydraulic Schematic Four 4 Wheel Drive TEST PORT 2000 PSI 138 BAR 2500 1600 RPM 12 6 1 ...
Страница 124: ...Sundstrand Tandem Pump Repairs Page 4 44 Reelmaster 335 D ...
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Страница 186: ...Wiring Schematics Engine Crank and Start Circuit Wiring Schematics Page 5 2 Reelmaster 335 D ...
Страница 187: ...Engine Run Circuit Reelmaster 335 D Page 5 3 Wiring Schematics ...
Страница 188: ...Engine Run and Mow Circuits Wiring Schematics Page 5 4 Reelmaster 335 D ...
Страница 226: ...Rear 4WD Axle Service l A B Ax e Housing Axle Housing Figure 17 Figure 18 Repairs Page 6 12 Reelmaster 335 D ...
Страница 236: ...Repairs Page 6 22 Reelmaster 335 D ...
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Страница 254: ...Commercial Products The Toro Company ...