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H - 8 0 0 T U B G R I N D E R
O P E R A T I N G I N S T R U C T I O N S
Section 4: Troubleshooting the H-800 Tub Grinder
4.1 General Troubleshooting
1. No grinding capacity
1. The screen is plugged.
2. The hammers or screens are badly
worn.
3. Materials are too light or fluffy.
1. Clean out the holes in the screen.
2. Replace or turn worn parts.
3. Mix the lighter material with heavier
material.
4. Use a larger screen.
2. The tub slows down or turns slowly
1. The hydraulic pressure is low or flow
control is set too low.
1a. Look for internal leakage or wear in
the orbit motor or pump.
1b. Check oil pressure.
3. The machine vibrates excessively
1. A hammer is broken.
2. The rotor bearing is defective.
3. The driveline is worn or misaligned.
4. Foreign material is wrapped in the
rotor.
5. The hammer pattern is incorrect.
6. Fan blade broken
1. Replace the broken hammer. See
product manual for more information
about replacing hammers.
2. Replace the rotor bearing.
3. Replace worn part or the complete
driveline.
4. Remove the foreign material.
5. See product manual for more infor
-
mation about hammer patterns.
6. Replace fan blades.
4. The tub stalls
1. The tub hydraulic system, pressure
relief valve is set too low.
2. The tub is overloaded due to wet or
tough grinding materials.
3. Too much material in the tub.
4. The tub is binding.
5. The hydraulic oil is too hot.
1. Check oil pressure.
2. Reduce amount of material in tub
or shift the hydraulic tub drive to low
range.
3. Reduce the amount of material in
tub.
4. Remove material buildup between
the tub and the platform framework.
5. Reduce the load on the hydraulic
system, or stop and allow the hydraulic
oil to cool.
Summary of Contents for HAYBUSTER H-800
Page 2: ...A Tradition of Innovation Since 1966...
Page 4: ...A Tradition of Innovation Since 1966...
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Page 69: ...TM H 800 PTO Driven Tub Grinder Part 2 Parts Reference 59...
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