Kubota DF972-E2 - Fuel System

S-20
WG972-E2, DF972-E2, WSM
GASOLINE / LPG ENGINE
(4) Fuel System
Adjusting Governor
1. Loosen the governor lever nut (3).
2. Set the throttle valve to the fully "OPEN" position with the
governor lever (1), turn the groove on the governor lever shaft (2)
fully clockwise with a screwdriver (to open the governor
completely), and then tighten the nut (3) in this position.
NOTE
■
• Insert the governor lever to the position 2 mm (A) away from the
fork lever shaft end.
W1036105
Adjusting Engine Speed
1. Warm up the engine at a medium speed for 10 to 15 minutes.
2. Engine speed is adjusted to approx. 1500 min
-1
(rpm) by the
speed control lever (3).
3. Throttle valve (1) is closed by hand and engine speed is adjusted
with the throttle adjust screw (2) to 1200 min
-1
(rpm) (1100 to
1300 min
-1
(rpm)).
4. Adjust the low-idling speed adjust screw (4) until the engine
speed reaches 1500 min
-1
(rpm) (1400 to 1600 min
-1
(rpm)) with
the speed control lever (3) in the minimum speed position.
5. Adjust the high-idling speed adjust screw (5) until the engine
speed reaches 3850 min
-1
(rpm) (3850 to 3950 min
-1
(rpm)) with
the speed control lever (3) in the maximum speed position.
W1017430
Tightening torque Governor lever nut
23.5 to 27.5 N·m
2.4 to 2.8 kgf·m
17.4 to 20.2 ft-lbs
(1) Governor Lever
(2) Governor Lever Shaft
(3) Governor Lever Nut
A : 2 mm (0.079 in.)
B : Open Direction
Lo-idling speed
Factory spec.
1500 min
-1
(rpm)
(1400 to 1600 min
-1
(rpm))
Hi-idling speed
3850 min
-1
(rpm)
(3850 to 3950 min
-1
(rpm))
(1) Throttle Valve
(2) Throttle Adjust Screw
(3) Speed Control Lever
(4) Low-idling Adjust Screw
(5) High-idling Adjust Screw
KiSC issued 01, 2006 A