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4.8. REGENERATIVE DUMPING POSITION
The loader valve has a "Feel Position Regenerative Spool" incorporated in the attachment spool. The tilt cylinders
must be connected to this spool allowing the operator to choose normal dump or fast dump during loader
operation.
NOTE: Use normal dump position when digging with loader. This will allow operator to put full tractor
weight on cutting edge during this operation. The regenerative function can then be used when dumping
load from bucket.
NOTE: Valve circuits must be hooked up correctly to allow regen to operate correctly.
IMPORTANT: If the bucket or attachment does not operate as indicated on the directional decal, lower the
bucket to the ground, stop the engine, and relieve all hydraulic pressure. Recheck hydraulic circuits
hookup to loader valve and correct.
NOTE: Use of regen function during dumping will eliminate attachment cylinder cavitation, which will
reduce or eliminate any free movement of bucket or attachment during loader operation.
CAUTION: Do not tamper with relief valve setting. The relief valve is pre-set at the factory.
Changing the setting can cause overloading of the loader and tractor, which may result in serious
injury.
4.9. INITIAL LOADER OPERATION
NOTE: Keep engine speed at low idle during the initial loader operation.
Before operating the loader, fully raise and lower the boom two or three times. Then raise the loader bucket
approximately four (4) feet above the ground and cycle the tilt cylinders two or three times. Lower the bucket or
attachment to the ground. Check the tractor hydraulic fluid level and fill as required. Refer to the tractor Operator
Manual for the proper hydraulic fluid and the correct hydraulic fluid level.
CAUTION: Before leaving the tractor seat, lower attachment or loader boom to ground, stop
engine, lock brakes, relieve hydraulic pressure, and remove key.
IMPORTANT: Always keep the cylinders in a retracted position when the loader is not in use to guard
against rust and contamination which may cause damage to the cylinder rods and hydraulic system.
4.10. REMOVING AIR FROM HYDRAULIC SYSTEM
Repeat raising and lowering the loader boom and bucket until all the air is removed from the system and the
system responds properly.
Check the tractor hydraulic fluid level and fill, if required.
4.11. RELIEF NOISE
When operating loaders at high RPMs with orifice installed in attachment circuit, some hydraulic oil will go over
pressure relief. This could cause some relief noise from relief cartridge, which is normal.
Содержание ML170 series
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