Grillo DUMPER 406 Manual De Instrucciones página 12

5) REPLACING THE SPROCKET
If abrasions and wear are noted on the sprocket, it must be replaced as soon as possible since in these conditions it
might cause abrasion or reveal the metal core.
6) OPERATING TEMPERATURE
The ideal operating temperature for the rubber crawler track is between -25° and 55° C, because of the fundamental
properties of the rubber.
ADJUSTMENT OF THE STEERING LEVERS
When pulling the steering lever to turn right (fig. 1, n. 5) the right hammer inside the gearbox (fig. 12) lock the hole of the
crown gear and block the track traction. In the meantime the right track brake will be engaged. When the lever is
released the hammer gets out of the crown gear, the brake is unlocked and the machine goes forward again.
Should the machine not turn properly or should the lever not come back to its original position once released, adjust the
self-locking nut placed on the hammer rod (fig. 12) and on the brake rod (fig. 14).
When the steering lever is not engaged (fig. 1, n. 5) the hammer should not lock the gear crown (fig. 12) and the brake
must not be blocked (fig. 14).
AUTOMATIC SAFETY BRAKE
Please note this adjustment must be carried out by an authorized dealer. To adjust the brake use the adjusting screw
(fig. 16, pos. B). The machine must hold firmly even at full load and on a slope.
TRACTION BELT TIGHTENER
Check that the belt tightener has sufficient freeplay to avoid pulling the belt into stop position. During work the belt
tightener retrun spring must be tensioned (fig. 15). CAUTION: THE ROTATION OF BOTH THE BELT AND THE
PULLEYS IS HIGHLY DANGEROUS, THIS CHECK MUST BE ABSOLUTELY CARRIED OUT WHEN THE ENGINE IS
OFF.
PROCEDURE
check the level
Engine oil
Air filter
Spark plug
Check the level
Gearbox oil
Check that the engine intake grid is clean
● recommended procedure
‫ ٭‬procedure to be carried out if necessary
Translation of the original instructions
MAINTENANCE SUMMARY TABLE
EVERY 8 HOURS AFTER 20
change
check
replace
check/adjust
replace
replace
EVERY 50
HOURS HOURS
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10
EVERY 100 EVERY 200
HOURS HOURS
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