Komatsu GALEO BR550JG-1, Руководство по эксплуатации и техническому обслуживанию

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OPERATION
OPERATION
DETERRING WEAR ON JAW PLATES
CAUSE FOR PREMATURE WEAR
Advanced Delayed
Outlet clearance Narrow Wide
Water content Plenty Scarce
Muck mixing ratio Plenty Scarce
Sio2 content in silica Plenty Scarce
Rock hardness Hard Soft
The outlet clearance and silica content particularly exercise a big influence among several factors listed above.
PREVENTION OF PREMATURE WEAR
An ideal way to deter wear on the fixed and swing jaw plates is not to narrow the outer clearance extremely but adjust
it a bit wider than specified and use a sieve together.
Do not try to set the minimum clearance at the outlet of the jaw crusher below 55 mm (2.2 in) in case of handling
concrete debris, and below 100 mm (3.9 in) in case of handling natural stones.
PRECAUTIONS WHEN OPERATING JAW CRUSHER
PRECAUTIONS IN OPERATION
1. Adjust the grizzly feeder so that the crusher chamber will not be
filled more than 80% at the most (approx. 60% on average).
Never fill up the crusher chamber.
If the feeding rate is too high, abnormal wear develops on the
center to upper part of the fixed and swing crusher plates.
2. Try to feed a large chunk of debris or a concrete block
containing many reinforcing bars toward the end of the day's
operation, because they are highly likely to disrupt the work by
stopping the machine.
PREPARATION FOR DEBRIS AS RAW MATERIALS
1. Break debris into small pieces having a size below 1200 x 950 x 600 mm (47.3 x 37.4 x 23.6 in) in advance.
If there are a number of blocks having the maximum allowable dimensions in the debris to be crushed, crushing
efficiency will be lowered. (Break natural stones into pieces having a size below 600 mm (23.6 in) cube).
2. Debris should not contain so much water that it becomes muddy.
3. Preferably reinforcing bars should not be included in the debris to be crushed for better working efficiency. (They
tend to narrow the clearance at the outlet, thereby reducing the discharging efficiency)
4. For good work efficiency, debris may well be mixed in the debris to be crushed at the rate of 20 to 30%.
(If this ratio is higher than that, debris serves as a cushion in the crusher chamber, lowering the work efficiency.
Moreover it causes premature wear on the fixed and swing jaw crusher plates)
5. Do not allow impurities (wood, paper, etc.) to get mixed in the debris to be crushed. Otherwise they can clog the
outlet, and lowered debris discharge may lead to a damage on the crusher and toggle plate.
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