XCMG XE17U, Инструкция по эксплуатации

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09.2020 Seite 163 / 197
6.14 Traction Maintenance
Traction Operating Lever
Notice! Removal of traction operating lever
– If necessary, remove the traction operating lever.
– Lower the bucket to ground.
– Stop the engine as per its shutdown steps.
– Pull the safety locking rod to LOCK (lock).
– Remove the bolts 1 and 2, and remove the traction operating
levers 3 and 4 from the control valve.
Track Sag
Notice! Check of track sag
– Check the track sag every day .
o
If the crawler are too light, wear is increased.
o
If the crawler are too loose, wear is increased and the
crawler may come off.
– As shown in Figure, rotate the upperstructure by 90°, and then
lower the bucket to lift the track approx. 200 mm off the ground,
keep the angle between the boom and arm within 90° to 110°,
place the arc part of bucket on the ground, place the cushion block
under the frame of chassis to support the machine, rotate the track
back by two circles, rotate it forward by two circles, and measure
the distance A (between the track roller and the inside surface of
the track) from the middle part of chassis frame.
– Requirements of track sag:
Crawler type A(sag)/mm
Rubber 10-15
Steel 75-80
– If the crawler loosen more than 25mm (rubber) or 50mm(steel),
readjust the crawler.
– If necessary, tighten or loosen the crawler.
– Start the excavator and rotate the lifted crawler carefully.
Note:
– Check the slag of track after removing the soil on the track plate.
Clean all parts of the running gear, paying particular attention to
stones between the crawler and sprocket or idler. Clean the area
of the crawler tension cylinder.