Kubota WSM ZD331 User Manual

1-S4
ZD321, ZD326, ZD331, WSM
ENGINE
W1014322
Symptom Probable Cause Solution
Reference
Page
High Oil Pressure Different type of oil Use specified type of
oil
G-7
Relief valve defective Replace –
Engine Overheated Engine oil insufficient Replenish G-7
Fan belt broken or elongated Replace or adjust G-27
Coolant insufficient Replenish G-7
Radiator net and radiator fin clogged with dust Clean G-32
Inside of radiator corroded Clean or replace G-32
Coolant flow route corroded Clean or replace –
Radiator cap defective Replace –
Overload running Reduce the load –
Head gasket defective Replace 1-S35
Incorrect injection timing Adjust 1-S25, 37,
42
Unsuitable fuel used Use specified fuel –
Battery Quickly
Discharged
Battery electrolyte insufficient Replenish distilled
water and charge
G-25
Fan belt slips Adjust belt tension or
replace
G-27
Wiring disconnected Connect –
Rectifier defective Replace –
Alternator defective Replace –
Battery defective Replace –
KiSC issued 04, 2007 A

Kubota WSM ZD331 Specifications

General

Transmission	Hydrostatic
Fuel Type	Diesel
Cylinders	3
Engine Type	Diesel
Cutting Width	72 inches
PTO	Independent
Type	Zero-Turn Mower
Displacement	68.5 cu in
Drive	2WD
Turning Radius	Zero