Maintenance
97
Adjusting the crawler tension
Tightening the crawlers
Position the grease gun on the grease nipple (1).
Pump the grease gun until the specified crawler tension is
obtained.
Loosening the crawlers
Cautiously unscrew the pressure valve (2) and loosen the crawler.
Grease could squirt out from the cylinder opening.
Screw in the pressure valve and torque to 98-108 Nm.
Tighten the crawler.
The following description applies to the excavator type U10-3.
Greasing the pilot valve linkage
Pull up the rubber boot on the control lever (3).
Lubricate the u-joint (1) below the plate (2) with grease. See
the "Recommended lubricants" section (page 100).
Insert the rubber boot in the console.
Carry out the service for the second control lever.
Checking the electric cables and connections
Check all accessible electric cables, connectors and connections for condition and security.
Repair or replace damaged parts.
Check the fuse box and fuse holders for oxidation and dirt, clean if necessary.