Dando TERRIER Mk 1, Operating And Maintenance Manual, Page: 69 / 276

5.14 TROUBLESHOOTING PROBLEMS: RESEARCH AND SOLUTIONS
PROBLEM CAUSE SOLUTION
Machine tends to move even
when control levers are in
zero (neutral) position - Displacement of the
position of regulating plate
(vibration
– loosening of the
screws)
- Follow the instructions on
paragraph “Adjustment &
zero
settings of th
e pumps” in the
hydrostatic system
The machine moves in
jerking movements
-
Lack of oil in the tank
- Air in the hydrostatic
transmission system
-
Blockage in the hydrostatic
oil filter
-
Check & replace the oil
level
- Check the efficiency of the
tubes & the connections
- Replace the filter cartridge
The machine does not work
to its full power capacity - Wrong sort of hydraulic oil
has been used
-
Hydraulic oil filter is blocked
- Check & replace with
suitable oil
- Replace the filter cartridge
The track tends to come off
its runners
-
The track becomes loose &
slack because of its position
-
Adjust it by following the
instructions in the paragraph
“Instructions & Checks” in
general maintenance
One of the two tracks is
blocked
-
Foreign body between the
track & frame
-
Remove the Foreign Body
The engine does not start
-
Flat Battery Terminals
oxidized
-
Starter is in the wrong
position
- Empty fuel tank
- Wrong Fuel
- Starter motor or
Electromagnet damaged
-
Check & replace or clean
- Reposition correctly as in
engine use & maintenance
manual
- Check & refill
- Check & replace & clean
the tank
- Refer to authorised
workshop
The mast body will not lower - Mechanical Obstacle
-
Blocked axle bolt
- Remove the obstacle
-
Grease the axle
The mast body will not raise
-
Breakage of the
Oleodynamic Pump
- Breakage of the
Oleodynamic tubes
-
Distributor Pressure too
low.
-
Check & Replace
-
Check & Replace
- Check & Replace
The machine does not move
in the two drive directions
despite lever operation - Breakage of oleodynamic
tubes between hydrostatic
motor & pump
-
Breakage of control cables
- Check & replace
- Check & replace
Problems with the
Translation System
-
Hydraulic Oil Overheated
-
Wait for the Hydraulic Oil to
cool down & then try again.
The machine does not brake
with engine off - Wheel reduction gear brake
disks worn
-
Wheel reduction gear brake
spring broken
- Refer to authorised
Workshop
-
Refer to authorised
Workshop
Despite lever operation, the
corresponding track does not
move - Reduction gear or
hydrostatic engine broken
(recognised by excessive
noise)
- Refer to authorised
Workshop
Excessive overheating of
hydraulic oil
-
Radiator fan not started
- Low hydraulic oil level
-
Check thermostat
efficiency (start-up at about
60° C) & electrical
connections
- Check & top up
TABLE 5.6
– TROUBLESHOOTING PROBLEMS