TROUBLE SHOOTING
617 TRENCHER
N
N
9. Digging chain to tight. Digging chain should only be tight enough to remain
on sprockets while turning under load. Their should be some sag in the
chain. If too tight, loosen chain by the adjusting nut(s) on the boom.
10.
Sand build-up in tooth root of sprocket. Sand can build up in the sprockets
effectively increasing the chain tension. Raise the boom out of the ditch and
reverse the digging chain on the trencher, then run the trencher out of the
trench to clear the sprockets. Reinstall the chain in its correct digging direc-
tion and readjust chain tension.
11.
Digging sprocket clamp loose on headshaft. Observe if the headshaft is
turning. If shaft is turning but sprocket is not, stop the trencher and tighten the
sprocket clamp.
PROBLEM: Trencher does not dig fast enough
POSSIBLE CAUSE AND REMEDY:
1.
Digging teeth worn. See maintenance Section L in this manual. Inspect
teeth and replace as needed.
2.
Skid steer relief valve set too low. See skid steer operator's manual and or
dealer for proper relief valve service and adjustment.
3.
Quick coupler or hose restriction. Inspect couplers and hoses for dirt, rust,
and other contaminates and repair or replace as needed.
4. Hydraulic system over heating. Shut the trencher and skid steer down and
allow oil to cool. Repeated stalling of the trencher will cause the oil to over
heat. Avoid excessive stalling.
5.
Cutting a ditch size beyond the ability of the skid steer. Your trencher is
powered by oil from the skid steers auxiliary hydraulic system. The horse-
power transmitted through the auxiliary hydraulics is substantially less than
that of the engine.
PROBLEM: Hydraulic oil over heating
POSSIBLE CAUSE AND REMEDY:
1.
Skid steer relief valve set too low. See skid steer operator's manual and/or
dealer for proper relief valve service and adjustment.
5799
2-26-92
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