46
16) Water pump assembly and thermostat
Disassembly
(1) Remove the set plate gasket.
(2) Remove the thermostat spring.
NOTE: The pump main body is aluminum die cast
and should be replaced as ass’y if subjected to
water leakage or other troubles.
Specification and inspection
Thermostat
(1) Replace if the valve is opened even only slightly at
normal temperature.
(2) Immerse the thermostat in water, increase the water
temperature gradually and check the valve opening
temperature and valve lift.
NOTE: 3 to 5 minutes are required until the valve is
operated.
Reassembly
Reassemble the components in the reverse order to
disassembly.
142Y
1.
Water pump ass’y
2.
Gasket
3.
Set plate
Model
N843
Type Wax
pellet
Opening temperature
71°
C
Full-opening temperature
82°C
Valve lift
8.0 mm
143Y
Содержание ST330
Страница 5: ...1 Chapter 1 GENERAL...
Страница 29: ...24 2 1 Engine Sectional View 100Y 101Y...
Страница 49: ...44 13 Oil flow 138Y V Suction filter W Oil pump X Relief valve Y Oil filter Z Oil pressure switch...
Страница 74: ...64 Chapter 3 TRACTOR MAIN BODY...
Страница 96: ...86 1 SECTIONAL VIEW 360Y 3 4 Transmission 1 for HST...
Страница 98: ...88 2 HST unit 362Y...
Страница 127: ...117 2 Two Speed PTO Model 403Y 9 3 Transmission Without one way clutch 2 Speed PTO...
Страница 197: ...186 2 COMPONENT LOCATION 517Y...
Страница 245: ...233 4 WIRING 518aY...
Страница 246: ...234 518bY...