McCONNEL MULTIDRIVEM380‐4&M420‐4
74
Foot (service) Brake Check
Park machine on level ground and secure wheels to prevent machine moving whilst
carrying out any checks.
The disc brakes of both axles are self-adjusting and require no brake adjustment
maintenance. However at each service interval the brake disc wear should be checked.
To check for brake wear remove the level
plugs that are adjacent to the brake discs
and with the brakes applied check the
distance between two intermediate discs,
the minimum gap ‘S’ should be 5 mm.
NOTE
Both front and rear axle should only be filled to correct levels with type API GL 4 oils with
anti-squawk qualities. See page 98 for details.
FAILURE TO DO SO MAY RESULT IN BRAKE SQUAWK AND POSSIBLE BRAKE
FAILURE. If the brakes start to ‘squawk’ drain oil, check brake discs for wear, replace as
necessary and re fill with correct grade of oil.
Power Brake Operation Check
Start engine and ensure brake accumulators are fully charged.
With tractor parked on small incline, apply park brake and stop engine. With the footbrake
applied, release park brake – vehicle should be held. Allow tractor to roll forward and apply
foot brake, which should bring tractor to the stationary position.
If brakes do not operate, or brake pressure warning indicates on the MCU after one
footbrake operation, please contact your service dealer. Ask your service dealer to
check brake efficiency periodically.
Hand / Park Brake
Park brake should be checked regularly to ensure correct operation and adjustment and
wear, refer to McConnel Service for details, or check on www.mcconnel.com technical
library. For access to technical library call McConnel Service for login details.
Emergency Release of Park Brake
If it is necessary to tow the vehicle and in the event of loss of hydraulic pressure in the
braking system, the park brake can be released mechanically. The park brake is situated
on the rear output of the Transmission.
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