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Troubleshooting
PROBLEM
Chain does not turn.
Does not dig fast enough.
Chain turns in the wrong direction
POSSIBLE CAUSES
1. Hydraulic coupler not
completely connected
2. Defective hydraulic coupler
3. An obstruction in a hydraulic
hose
4. Auxiliary valve on the traction
unit is not opening.
5. Trencher boom end bearing
failed
6. Digging chain too tight
7. Sand buildup in tooth root of
sprocket
8. Hydraulic motor failure
9. Chain drive failure
1. Worn teeth
2. Wrong setting on flow divider
and speed lever
3. Quick coupler or hose
restriction
4. Hydraulic system too hot
5. Relief valve set below
specifications
1. Auxiliary valve lever in wrong
position
2. Hydraulic hoses reversed
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CORRECTIVE ACTION
1. Check and tighten all couplers.
2. Check couplers and replace
any that are defective.
3. Find and remove the
obstruction.
4. Repair the valve.
5. Replace the bearing.
6. Adjust the digging chain.
7. Raise trencher and run the
chain backwards, then reduce
the chain tension.
8. Contact Authorized Service
Dealer.
9. Contact Authorized Service
Dealer.
1. Replace any worn teeth.
2. Set the flow divider to the 10:00
position and the speed lever to
the "turtle" position.
3. Check hoses and couplers and
repair any problems found.
4. Shutdown and allow the
system to cool.
5. Contact Authorized Service
Dealer.
1. Move auxiliary valve lever to
the rearward position.
2. Disconnect hoses and switch
positions.
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