GB-26
RANSOMES MASTIFF 91
SAFETY, OPERATORS, MAINTENANCE AND PARTS MANUAL
CARBURETTOR ADJUSTMENT
Idle setting (Fig. 42 and 43)
1.
Allow the engine to warm up for
approximately 20 minutes and then stop the
engine.
2.
Tighten the pilot screw (C) of the carburettor
completely, and then loosen it by 1.25 turns.
NOTE: DO NOT overtighten the pilot screw as this
may cause the taper point to become stepped.
3.
Start the engine, set the control lever (G) to
the lowest speed position, and then adjust
the engine speed with the throttle stopper
adjusting screw (B) of the carburettor in
such a way that the engine maintains a
lowest speed.
4.
Tighten or loosen the pilot screw (C) to
adjust the engine to the highest speed. (The
speeddrops when the screw is turned too
much in either direction).
5.
Screw in the throttle stopper adjusting screw
(B) with the screw tip touching the throttle
valve (A) until the engine speed reaches
1100 to 1300rpm. This equals 550 to
650rpm at the output
shaft.
6.
Screw in the idle screw (E) of the speed
control plate (D) until the engine speed
reaches 1600rpm. This equals 800rpm at
the output shaft.
Fig.42
Fig.43
Fig.41
STEERING CONTROL CABLE
(FIG. 41)
The cable should be kept taut without overstraining
and the adjusters (A) at the rear of the machine
should be used for this purpose.
If adjustment is found necessary, tighten or
slacken the locknuts (B) to suit. Whilst every care
must be taken to ensure the cable is tight, the
relationship between the steering bar and the rear
roll must be maintained, ie. when the steering bar
is straight across the machine the rear roll should
be in the straight ahead position.
