smaller
b
Air Governor Adjustment Procedures
Caution:
Be sure to complete the carburetor adjustment before
adjusting the air governor.
1. Engine warming up
Standard
Coolant temperature: 75°C (167°F) or more
Hydraulic oil temperature: 50°C (122°F) or more
Engine oil temperature: 60°C (140°F) or more
2. Tachometer installation
3. No-load maximum speed
(1)
Remove the sealing.
(2) Loosen the bushing lock bolt.
(3) Fully depress the accelerator pedal to open the throttle
valve fully. Measure the engine speed.
If the engine speed is more than the standard, turn the
bushing counterclockwise. (A)
If the engine speed is less than the standard, turn the
bushing clockwise.
(B)
Note:
Refer to adjustment procedures of each section.
4.
Loaded maximum speed adjustment
(1) Fully depress the accelerator pedal and maintain the
speed at the no-load maximum speed.
(2) Operate the tilt lever backward and measure the relief
down.
Relief down: 300 rpm or
-
less
(3) If the relief down exceeds
250
rpm, turn the adjusting
screw counterclockwise for adjustment.
Note:
Refer to adjustment procedures of each section.
5.
Hunting adjustment
(1) If hunting occurs at either the no-load or loaded maximum
speed after completing the adjustments in steps 3 and
4,
adjust hunting by the bushing and adjusting screw.
Adjusting screw
.........
Hunting adjustment
Bushing
.....................
Maximum speed adjustment
Note:
If
hunting disappears after several times, it should be
judged no hunting.
Repeat above steps 3 to 5 for setting to the standard
values.
To Next Page
Loading...
Need help?
General
