Kubota D1703-B User Manual

5.3 COOLING SYSTEM 92.4mm STROKE SERIES WSM,01092
008713078
Radiator Water Leakage
1. Pour a specified amount of water into the
radiator.
2. Set a radiator tester (Code No: 07909-31551).
Increase water pressure to the specified pressure
of
1.4 kgfkm2 (137 kPa, 20 psi).
3. Check each section for water leakage.
4. When water leakage is excessive, replace the
radiator.
If water leakage is caused by a small
pinhole, correct the radiator
with radiator cement.
Radiator Cap Air Leakage
1. Set a radiator tester (Code No: 07909-31551) to
2. Apply the specified pressure of 0.9 kgfkmz (98.1
3. Check if the pressure drop to less than 0.6 kgflcrnz
4. If the pressure is less than the factory specification,
the radiator cap.
kPa, 12.8
psi).
(59 kPa, 9 psi) in 10 seconds.
replace
it.
0087F079
DISASSEM B LI NG AND ASSEMBLING
--Ly
4109F020
Thermostat
1. Remove the thermostat cover (1).
2. Remove the thermostat (2).
(When reassembling)
0 Apply a liquid gasket (Three Bond 1215 or
equivalent) only at the thermostat cover side of
the gasket.
(1) Thermostat Cover
(2) Thermostat
Water Pump
1 Remove the fan and fan pulley.
2. Remove the water pump from gear case cover.
3. Remove the water pump flange (1).
4. Press out the water pump shaft (2) with the
5. Remove the impeller from the water pump shaft.
6. Remove the mechanical seal (4).
(When reassembling)
0 Replace the mechanical seal with new one.
(1) Water Pump Flange
(2) Water Pump Shaft
(3) Water Pump Body
(4) Mechanical Seal
(5) Imppller
impeller (5) on it.
S-103

Kubota D1703-B Specifications

General

Brand	Kubota
Model	D1703-B
Category	Engine
Language	English