MERLO P25.6, Instruction Manual

Page: 112 / 232

6 - ORDINARY MAINTENANCE
6 - 34
• BRAKE SYSTEM DRAINAGE
Bleeding consists in eliminating air from the braking system.
It is necessary to bleed air from the system whenever hydraulic parts of such system are removed.
Carry out all the operations required to bleed air from the braking system on both axles, but only on the calipers equipped with
screw "A"
-
Firmly press down the brake pedal.
- Loosen the drainage screw (A).
- Re-close the drainage screw (A).
- Operate the brake pedal repeatedly.
- Repeat the first operation until liquid escapes from the screw without air.
TROUBLE SHOOTING
Should your machine not work correctly, please refer to the following table, so as to identify and eliminate the cause of the
problem. The operator is allowed to carry out just some operations, while the most complex ones shall be carried out by Merlo
Technical Support Service.
FAILURE CAUSE REMEDY
HYDRAULIC
SYSTEM
- Oil level is too low/ too high Restore the correct oil level
- Oil type is not suitable Change the oil type
- Oil is dirty or contains water Change the oil
- Oil is cold at start Let the oil warm up
- Leak in the system Eliminate the leak
- Presence of air in the oil Eliminate air
- Hoses are throttled Eliminate throttling
- Return filter is dirty/ clogged Replace the filter
Should you notice any other failures in the hydraulic system (pump, valves, cylinders, etc.),
please contact Merlo Technical Support Service.
ELECTRICAL
EQUIPMENT
- Battery is flat Charge it
- Electrolyte level is low Fill it up
- Connections are slack/ rusted Restore normal conditions
- Fuses are blown Search for failure cause – Replace fuses
- Alternator belt is slack Adjust belt tension
Should you notice any other failures in the electrical equipment, please contact Merlo
Technical Support Service.
BRAKING
SYSTEM
- Excessive brake pad wear
Replace brake pads. Please contact Merlo
Technical Support Service
- Low brake fluid level Check the system for any leak, then fill it up
- Air in the system Purge air from the system
ENGINE
Please refer to the troubleshooting section in the Engine Manual.
For any operations other than routine maintenance to be carried out on certain parts (injection
pump, injectors, valves, etc.), please contact Merlo Technical Support Service.
HYDROSTATIC
TRANSMISSION
For these operations please contact Merlo Technical Support Service.