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Bleeding the
h
eating
s
ystem
Check contents of the coolant in the equalizing reservoir. Top up the coolant if need be.
Loosen the overpressure plug only after the coolant cools down! Scald danger!
The bleeding valve of the heater (1) is located on the left-
hand side of the tractor in front of the cabin and it is
accessible after the bonnet has been lifted off.
Bleeding procedure:
Set the heater valve control on the dashboard to
maximum volume.
Fit a hose on the tube of the heater bleeding valve. Dip
the other end of the hose in the coolant vessel.
Start up the engine.
Loosen the bolt of the heater bleeding valve.
Increase the engine speed to cca 1500 r.p.m.
Once air bubbles stop issuing from the dipped end of the
hose tighten up the bolt of the heater bleeding valve.
Stop the engine.
NM14D005
MAINTENANCE INSTRUCTIONS
115
Summary of Contents for MAJOR HS
Page 1: ...OPERATOR S MANUAL MAJOR HS 1 2017 80 Tractor is Zetor Since 1946 1 2017 1 2017 ...
Page 3: ...2 ...
Page 9: ...8 ...
Page 11: ...NOTES 10 ...
Page 41: ...NOTES 40 ...
Page 47: ...NOTES 46 ...
Page 63: ...NOTES 62 ...
Page 93: ...NOTES 92 ...
Page 97: ...Placement of fuses in fuse box MHS16N107 ELECTRIC INSTALLATION 96 ...
Page 101: ...NOTES 100 ...
Page 109: ...NOTES 108 ...
Page 135: ...NOTES 134 ...