wsm STW37 Workshop Manual page 132

STW34, STW37, STW40, WSM
(Continued)
(When reassembling)
• Set the end with less clearance (color painted (8) when it is new)
of small governor spring (4) to the governor lever (7).
• Set the large governor spring (3) to the governor lever (7).
• Put the specific tool (1) from the injection pump cover side to
catch the large governor spring (3). Keep this spring in an
extended position and put the speed control plate (6) in its
specified position.
• Use the specific tool (1), set the small governor spring (4) on the
fork lever (2).
• Use the specific tool (1), set the large governor spring (3) on the
fork lever (2).
NOTE
• Be careful not to stretch the small governor spring (4) too
long because otherwise it may get deformed permanently.
• Make sure both the governor springs (3), (4) are tight on the
fork lever (2).
• Apply and tighten up the two bolts and two nuts on the
speed control plate (6).
• Check that the speed control lever (5) positions low idle,
after assembling governor springs.
• Check that the speed control lever (5) returns to the high
idle position rather than the low idle position, after moving
the lever to the maximum speed position.
• Finally attach the injection pump cover in position.
(1) Specific Tool
(2) Fork Lever
(3) Large Governor Spring
(4) Small Governor Spring
(5) Speed Control Lever
(6) Speed Control Plate
1-S53
ENGINE
(7) Governor Lever
(8) Color Painted
(9) 3 mm (0.1 in.)
(10) 2 mm (0.08 in.)
(a) Previous
(b) Modified
9Y1211109ENS0073US0
KiSC issued 11, 2014 A