Operation Manual

© 2014-2015 Minuteman International, Inc.
Armadillo 9X Sweeper #4100033 Rev. D 07/15
Page 88
TROUBLESHOOTING CHART
PROBLEM POSSIBLE CAUSE(S) SOLUTION(S)
Hydraulic control valve failure Misaligned control linkage. Align.
Foreign matter in spool bore. Remove spool and clean bore.
Valve seals Leaking. Replace seals.
O-rings leaking. Replace O-rings
Relief valve stuck open. Clean or replace relief valve.
Hydraulic motor failure. Motor leaking. Replace seals.
Drive link malfunction. Replace drive link.
Output shaft malfunction. Replace output shaft and bearings.
Hydraulic gear pump failure. Pump leaking. Replace seals or RR Pump
Gears worn or scored. Rebuild pump or RR Pump
Relief valve stuck. Clean or replace (at control valve).
Oil supply low. Check and ll.
Oil strainer clogged. Replace strainer (inside reservoir).
Incorrect oil. Use recommended viscosity oil.
Damage due to entry of air into
hydraulic system.
Maintain correct hydraulic uid level
in reservoir. Keep suction hose ttings
tight.
TROUBLESHOOTING