Barreto 13STKH Owner's Manual page 17

D. Tracks fail to turn, but chain rotates.
1. Sprocket key sheared.
Replace key. See drawings 00584 & 00585.
2. Check control arm connections to control levers and track drive pumps.
Ensure all fasteners are in place and tightened.
3. Check, by hand, that track drive pump bypass valves are tight.
If loose, tighten to 100 In-lb. (11.3 N-m). DO NOT REMOVE NUT. See Operators
Manual RECOVERY TOWING section.
E. Hydraulic fluid leaks in hydraulic system.
1. Fittings are loose.
Tighten fittings on hoses and adapters.
2. Worn or broken hoses.
Replace damaged hoses.
3. Hydraulic fluid around chain motor or shaft.
Inspect motor for leaking shaft seal. Rebuild or replace motor. New motors are available
from Barreto Manufacturing.
DANGER: Hydraulic oil is hot and under extreme pressure, which will burn and cut.
DO NOT operate machine if it is believed or known to be leaking.
DO NOT check for hydraulic oil leaks while engine is running.
DO NOT check for hydraulic oil leaks with your hand or any other body part.
If cut or injected with hydraulic oil, seek medical attention immediately, even if injury
appears to be minor. If hydraulic oil does not break skin, contact is not expected to cause
prolonged or significant irritation.
F. Foaming hydraulic fluid coming from breather hose.
1. Improper fluid used.
Verify that hydraulic fluid used had antifoaming additives. Tractor transmission /
hydraulic fluid AW or ISO 68 is recommended for use in temperatures above +32°F.
2. Air leaking into fluid.
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.
Adjust relief to 1000 PSI, may require a replacement valve spring. See drawing 00582 &
contact tech support.
2. Boom cylinder piston seal damaged or rod bent.
Disassemble & replace parts as required.
3. Boom pivot bushing seized.
Disassemble, inspect, clean & replace parts as required.
OWNER'S MANUAL
8/31/21 Page 17 of 18