Royal Enfield HIMALAYAN EURO IV 2017, Service Manual

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ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
Anti-Lock Braking System (ABS) fitted in Royal Enfield motorcycles, is a safety system to help the front and rear
wheels maintain traction with the road surface in the event of sudden application of brakes by the rider at high speeds.
It helps prevent the brakes from “locking” the wheels which can potentially cause the motorcycle to skid and result in
loss of control and an accident.
WORKING PRINCIPLE
During hard application of brakes, the sudden increase in the hydraulic force to the front and rear brakes are
controlled by a hydraulic pressure moderator which constantly reduces the excessive force on the hydraulic system
thereby ensuring the brake pads do not lock the brake discs. The moderator is controlled by an Electronic control
unit which not only receives real time inputs on the wheel speeds through sensors fitted near the wheel hubs but also
provides inputs to the valves in the moderator to regulate the hydraulic pressure such that the brake pads do not lock
the brake disc and cause the motorcycle to skid during emergency brake applications.
CAUTION:
While ABS assists in improved vehicle control during braking, decreased stopping distances on dry and graveled
surfaces, it may not be very effective in wet, snow covered, off road, conditions, loose gravel surfaces, hilly roads etc.,
since the traction of the wheel itself will be very minimal in these conditions.
As far as possible, all braking, including emergency braking should be done with the motorcycle upright and in a straight
motion. Avoid hard braking when banking heavily at great speeds.
Caution must be exercised by the rider for safe riding of the motorcycle and judge stopping distances
required, depending on the speed at which the motorcycle is travelling.
As soon as the ignition and engine stop switch are switched ‘ON’, the ABS sign will light up. The lamp
will remain ‘ON’ till the motorcycle attains a speed of 5 Kmph. (3MPH) and then switch ‘OFF’. This
indicates the ABS is working properly.
In the event the lamp does not switch ‘OFF’ and remains continuously ‘ON’ at higher speeds, it is recommended not to
ride the motorcycle and get the brake system inspected and corrected through a nearest authorized Royal Enfield
Distributor.
Without ABS
With ABS