ADJUSTMENT/MAINTENANCE
45 AU103168 C7B
TRENCHER DIGGING CHAIN TENSION
Check the tension of the digging chain frequently. The
tension specifications are for normal soil conditions.
Change the tension according to your soil conditions.
Increase tension in hard rocky soils and decrease the
tension in loose soils. Do not overtighten the chain.
Operating the trencher with the chain too tight will
increase the wear and decrease the service life of the
digging chain, sprockets and boom.
NOTE:
A digging chain tension set too tight will decrease
productivity
.
B4034790
1. Park the machine on a level surface. Lower the
trencher boom into a horizontal position, stop the
engine and remove the key.
BD01F318
2. Move the Steering Brake Levers all the way
REARWARD to lock the brakes.
B4033290
3. Loosen the two boom mounting bolts.
B4033390
4. Turn the adjusting screw at the bottom of the boom
to adjust the tension of the digging chain.
5. See the illustration below and on the following page
for correct chain tension in normal soil conditions.
6. Tighten the two boom mounting bolts after correct
tension procedure is complete.
WARNING:
Rotating chains. Contact with
rotating chains can cause serious injury or death.
Always keep the cover in place while you operate
the machine. Stop the engine and remove the key
before working in this area.
To Next Page
Loading...
