Kubota G1700 4WS User Manual

G1700·G1800·G1900·G2000 WSM,10830
S.l ENGINE
[3] LUBRICATING SYSTEM
CHECKING
0109F079
Engine Oil Pressure
1. Unscrew the oil pressure switch, and install the engine oil
pressure tester (Code No. 07916-32032).
(Adaptor screw size: PT1I8).
2. Start the engine. After warming up, measure the oil pressure
of both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient
• Oil gallery clogged
• Oil pump defective
• Excessive oil clearance
• Oil strainer clogged
• Foreign matter in the relief
• Oil filter cartridge clogged
valve
Engine oil
pressure
At idle speed
Factory
spec.
69 kP(1
0.7 kgf/cm2
10 p~1
At rated speed
Factory
spec
196to441 kP()
2.0to4.5 kgf/cml
28to 64 psi
Allowable
limit
69 kPa
0.7 kgf/cm7
10
psi
(When reassembling)
•
After checking the engine oil pressure, tighten the oil
pressure switch to the specified torque.
Tightening torque
Oil pressure switch
147to19.6N·m
1.5 to 2.0 kgf·m
10.ato 14.5 ft·lb,
DISASSEMBLING AND ASSEMBLING
Oil Pump
1. See page 5.1-63.
SERVICING
0109F081
Rotor Lobe Clearance
1. Measure the clearance between lobes of the inner rotor and
the outer rotor with a feeler gauge.
2. If the clearance exceeds the allowable limit, replace the oil
pump rotor assembly.
O.2Smm
Rotor lobe clearance
Allowable limit
0.0098 in.
5.1-81
229

Kubota G1700 4WS Specifications

General

Type	Lawn Tractor
Engine Model	Kubota D662
Transmission Type	Hydrostatic
Drive Type	4WD
Steering	4-wheel steering
Tire Size (Rear)	23x10.50-12
Engine Type	Diesel, liquid-cooled, 3-cylinder
Width	107 cm