Toro 04351 Greensmaster 3050, Руководство оператора

Страница: 42 / 48

42
Problem Corrective Action Possible Causes
In the hydraulic system there is no #1
or reverse traction speed. The #2
3. The traction relief cartridge in the
#4 spool section is open.
3. Remove the relief cartridge. Repair
or replace it. o e e se t act o speed e
speed is normal. (continued)
4. A traction motor lacks efficiency.
There is fluid leaking past the
internal gears.
4. Test to identify the faulty motor.
Repair or replace the motor.
5. The hydraulic pump lacks
efficiency. There is fluid leaking
past the internal gears.
5. Test to verify a diagnosis. Repair or
replace the pump.
There is no traction or it is slow in all
l i
1. The brakes are dragging. 1. Determine the cause and repair it.
selections.
2. The o-ring seals around the
traction relief cartridge or inlet
sleeve in the #4 spool valve are
faulty. Fluid is leaking by to the
tank.
2. Remove the relief and inlet sleeve.
Replace the o-rings.
3. A traction motor(s) is worn or
weak.
3. Test to verify. Repair or replace the
motor(s).
4. The pump is excessively worn. 4. Test to verify. Repair or replace the
pump.
5. The traction relief in the #4 spool
valve is open.
5. Remove, repair, or replace it.
There is no traction or it is slow in all
l i d h l ff d
1. The oil level in the reservoir is low. 1. Add oil to the proper level.
selections and the reels are affected.
2. The shift lever bracket is loose. 2. Adjust and tighten the shift lever.
3. The rear camshaft is misadjusted. 3. Adjust the camshaft.
4. The engine lacks power. 4. Repair as necessary.
The shift lever is binding. 1. The #4 spool detent assembly is
lacking lubrication.
1. Remove the valve bank.
Disassemble the detent assembly
and repair it.
All three cutting units raise and lower
too slowly.
1. The lift cylinder and linkages are
binding due to lack of lubrication.
1. Lubricate more frequently.
The center (#1) cutting unit is dropping
too late or too early.
1. The flow control valve is
misadjusted.
1. Adjust the valve.
The front cutting units are too high or
too low when they are in the raised
(transport) position.
1. The front lift cylinders are
misadjusted.
1. Adjust the cylinders.
The cutting units lift too slowly.
1. The rear camshaft is misadjusted. 1. Adjust the camshaft.
g y
2. The #1 spool travel is restricted by
the mow/lift switch.
2. Adjust the switch.
3. The lift check poppet in the #1
spool section is stuck partially
closed.
3. Remove the lift check and repair or
replace it.
The center cutting unit (#1) reel
operates in the raised position.
1. The rear camshaft is misadjusted.
The #3 spool is too far out of the
body.
1. Adjusted the camshaft.
2. The brazed tube assembly on the
#3 spool section is restricted.
2. Remove the restriction.
3. The valve return port between the
#3 spool section and the right-hand
cover is restricted.
3. Disassembly the cover and remove
the restriction.