Operation Manual

Armadillo 9X Sweeper #4100033 Rev. D 07/15

Page 89

TROUBLESHOOTING CHART

PROBLEM POSSIBLE CAUSE(S) SOLUTION(S)

Hydraulic variable displacement pump failure. Pump leaking. Replace seals.

Relief valve(s) stuck. Clean or replace relief valve(s) at the

pump.

Drive coupling malfunction. Replace defective gears.

Control linkage out of adjustment. Check to see if linkage is binding

unfastened.

Charge pump gears worn or

scored.

Replace defective gears.

Damage due to entry of air into

hydraulic system.

Maintain correct hydraulic uid level

in reservoir. Keep suction hose ttings

tight.

Hydraulic system noisy. Air in system. Check uid level in reservoir; check

for loose connections or leaks.

Relief valve dirty or damaged. Clean or replace.

Loose suction line. Tighten ttings.

Clogged section lter or pump inlet

line.

Replace lter, clear line; change uid

in reservoir if dirty and ush system.

Internal pump or motor damage. Inspect and repair.

TROUBLESHOOTING