Maintenance And Lubrication - Grillo DUMPER 406 Operator's Manual

FINISHING WORK
Return the throttle lever (4, fig. 1) to the idling position. To stop the engine, push the engine cut-off switch (Fig. 1, ref. 11).

MAINTENANCE AND LUBRICATION

The truck is designed to require very little maintenance. However, in order to keep it at top performance, the fol-
lowing operations are advisable:
- check that all the nuts and bolts are always firmly tightened;
- oil the throttle, clutch and brake cables;
- never use mineral oil on rubber parts as it will damage them;
- always check the oil levels and clean the air filter often;
- check the crawler track tension.
ATTENTION! Change oil when the machine is hot to aid total drainage of the old oil. Never remove the oil level
caps with the machine running as circulating oil may spill out.
ENGINE OIL
Comply strictly with the instructions given in the engine handbook. It is essential to check the level every 4 work-
ing hours and change it approximately every 50 hours (Fig. 9).
Use 10W30 (API SE) engine oil in summer and winter. Always consult the engine instruction manual.
AIR FILTER
Check the air filter oil level every 8 working hours or more often in very dusty conditions. Top up with the same
oil as for the engine (see engine handbook). On versions with dry filter, replace the cartridge if clogged (do not
clean with compressed air jets).
GEARBOX OIL
Check the level about every 50 working hours and top up if necessary with MP 85W/90 gearbox oil. Change the
oil once a year (quantity 1.35 kg). To drain the old oil from the gearbox, remove the screw (Fig. 8).
TRACK ROLLERS
Periodically grease the track roller pins, especially if the machine is working on sandy terrain (fig. 6).
USEFUL RULES FOR OPTIMUM USE
– Never leave the machine out in the rain.
– Never force the gearbox if the gear does not engage; give light touches on the clutch while engaging the
gear.
– Never make the engine labour too hard; when excessive smoke comes from the exhaust, the engine is labou-
ring. Slow down or engage a low range gear.
– Never work at full throttle.
– Remove any leaves or grass which accumulate on the grille around the engine pull-start.
The truck capacity is 400 kg, but users are advised to consider the terrain on which the vehicle is to be used when
deciding the load which can be transported. Remember that since this is a crawler vehicle, it pitches considerably
on humps, curbs and steps. When crossing such obstacles, use low gears and take special care; engage a low
gear and retain it until back on level ground. If the machine is stopped on steep slopes, release lever (1, Fig. 1) thus
blocking the truck automatically (B, Fig. 7). Although the truck has rubber tracks, remember to take care in difficult
environmental conditions (ice, heavy rain or snow) or on terrains which might make the vehicle unstable.
RUBBER CRAWLER TRACKS - precautions for use
1) TRACK TENSION (Fig. 6)
1) When the machine is lifted off the ground, the rubber tracks must sag by 10-15 mm as shown in the diagram.
Fig. 10 - Rubber crawler track tension
2) When the track becomes slack, it must be adjusted to prevent the machine from shedding an excessively loose track.
Dumper 406/ Translation of the original instructions
10 ~ 15 mm.
Fig. 10