Pump And Brake Pads; Steering; Tyre Pressure - GAS GAS HALLEY 125 SM/EC 09 User Manual

Rear-wheel braking is achieved through a foot-operated lever and
a 220mm-diameter disk brake. It is very important that the fluid-
pump piston push rod has some play with the piston, as otherwise
an excessively hot fluid would cause it to expand and might block
the wheel, with serious consequences for the user.

PUMP AND BRAKE PADS

Make sure that both brakes have the right amount of brake fluid,
and refill if required. Replace any worn brake pads on the hydraulic
clips.
Minimum pad thickness:
Below this level, they still work correctly. However, besides the risk
of defective braking, when this is required, the braking surface of
the disk might also be seriously damaged. Remember that these
operations should always be carried out by a specialised garage.
(A)
(B)
2mm
(A). Break
pump.
(B). Rear brake
pedal
adjustment
rod.
25
-

STEERING

The steering of a properly tuned up moped must turn easily; therefore,
if the steering feels hard or works erratically, this may be due to
either excessive tightening or defective condition of the ball race or
of the ball-bearing balls. Should the latter be the cause of the problem,
disassemble and replace the ball races and the steel balls. Remember
that the steering should always turn smoothly and must never have
any play.

TYRE PRESSURE

The HALLEY features two wheels of different sizes and pressures:
Front wheel: 80 x 90 x 21"
With 1 passenger: 1 Bar
With 2 passengers: 1,5 Bar
Rear wheel: 110 x 80 x 18"
With 1 passenger: 1,2 Bar
With 2 passengers: 1,7 Bar
-
(I)
(J)
(I). Brake caliper.
(J). Pad.
EC
SM
2
2.5
2.2
2.7