1-S43
MX5100, WSM
ENGINE
Water Pump Assembly (If necessary)
1. Remove the water pump assembly (1) from the gear case.
(When reassembling)
• Replace the gasket (2) with new one.
W1051957
Injection Pump
1. Remove the boost compensator assembly (2).
2. Remove the hi-idling body (4).
3. Remove the stop solenoid (3).
4. Remove the stop solenoid guide (5).
5. Remove the injection pump assembly (1).
• Before removing the injection pump assembly (1), be sure to
remove the boost compensator assembly (2), hi-idling body
(4), stop solenoid (3) and stop solenoid guide (5).
(When reassembling)
• Before attaching the boost compensator assembly (2), hi-idling
body (4), stop solenoid (3) and stop solenoid guide (5), install the
injection pump first into position.
• Replace the hi-idling body gasket with a new one.
• Before fitting the boost compensator assembly (2) to the gear
case, make sure that the solenoid guide (5) is at the initial
position.
• When installing the stop solenoid (3), be careful to keep the O-
ring in place.
• Be sure to insert the push rod of the stop solenoid into the hole
at the center of the solenoid guide (5).
• If you replace new boost compensator, it is necessary to
adjust it.
Get the adjustment procedure from KUBOTA.
W1032355
(1) Water Pump Assembly (2) Gasket
Tightening torque Hi-idling body
45 to 49 N·m
4.5 to 5.0 kgf·m
33 to 36 lbf·ft
(1) Injection Pump Assembly
(2) Boost Compensator Assembly
(3) Stop Solenoid
(4) Hi-idling Body
(5) Stop Solenoid Guide
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