20RTK – 23RTK OWNER’S MANUAL 12/8/21 Page 15 of 18
TRACK TRENCHER TROUBLESHOOTING GUIDE
CAUTION!!
Always use extreme care when troubleshooting or making adjustments on trencher. Stay
clear of chain and auger when engine is running. Stop engine before disassembling any component.
A. Entire hydraulic system does not operate and the engine is not under load.
1.
Low hydraulic fluid in tank.
2.
Hydraulic pump-to-engine coupler has
slipped.
3.
Main pump suction leaking air into pump
intake.
Add hydraulic fluid until it shows in sight
gauge.
Check for wear and replace both coupler
halves and rubber spider, as needed.
Check main suction hoses and fittings for
leaks and tighten fitting nuts.
B. Engine lugs down or dies and tracks and chain do not turn.
1.
Rocks or other obstructions stopping chain.
2.
Trenching depth or speed too great for soil
conditions.
3.
Engine improperly tuned or maintained.
4.
Low oil alert causes engine to shut down.
5.
Engine losing power due to wear.
Reverse chain momentarily to free it from
obstruction. Raise boom and stop chain. See if
obstruction can be removed from trench.
Decrease ground speed or trenching depth.
See engine manual and correct as needed.
This may occur when trenching on hills.
Level trencher, check oil and allow oil alert to
reset.
See engine manual.
C. Chain fails to rotate, but track drive works.
1.
Chain motor worn.
2.
Chain Control Relief Valve
malfunctioning.
3.
Chain drive pump worn.
Rebuild or replace motor. New motors are
available from Barreto Manufacturing.
Adjust Relief Valve to 3500 PSI or replace
relief spring if needed.
Replace pump.
