20RTK – 23RTK OWNER’S MANUAL 12/8/21 Page 16 of 18
TRACK TRENCHER TROUBLESHOOTING GUIDE (continued)
D. Tracks fail to turn, but chain rotates.
1.
Sprocket key sheared.
2.
Pump cable lever loose on shaft.
Replace key and other parts as needed.
Tighten setscrew on pump lever.
E. Hydraulic fluid leaks in hydraulic system.
1.
Fittings are loose.
2.
Worn or broken hoses.
3.
Hydraulic fluid around chain motor or
shaft.
Tighten fittings on hoses and adapters.
Replace damaged hoses.
Inspect motor for leaking shaft seal. Rebuild or
replace motor. New motors are available from
Barreto Manufacturing.
F. Foaming hydraulic fluid coming from breather hose.
1.
Improper fluid used.
2.
Air leaking into fluid
Verify that hydraulic fluid used had
antifoaming additives. Tractor transmission /
hydraulic fluid ISO 68 is recommended for use
in temperatures above +32°F.
Inspect and tighten fittings and clamps on
pump intake hoses
G. Boom does not lift, or does not lower into ground.
1.
Boom lift relief valve malfunctioning.
2.
Boom cylinder piston seal damaged or rod
bent.
3.
Boom pivot bushing seized.
Adjust relief to 1000 PSI. This may require a
replacement spring in valve.
Disassemble & replace parts as required.
Disassemble, inspect, clean & replace parts as
required.
