Lubricating Oil/Cooling Water Thermostat
Maintenance / Checking
A5.05. 11.06.01.00
7500
M20-M601C
en / 31.05.2000 IB021739 2/2
11
Ĺ
1.6 Check lower seat and sealing faces of thermostatic element for damage.
1.7 Wipe clean thermostat housing with a lint-free rag and check for corrosion and deposits.
Check upper plate for erosion.
2. Functional Check of the Thermostatic Element
2.1 Put thermostatic element (1) into a water bath of a termpature of approx. 10 K above the
mean temperature specified on the insert (XX) (specification in degree Fahrenheit).
2.2 The thermostatic element must open steadily.
3. Assembly
3.1 Slightly grease inner side of O-ring (4) and upper face of element and regulating spindle.
By the clearance of the O-ring, heat elongations are compensated.
3.2 Top up lubricating oil/cooling water system and check thermostat for leakage.
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