Maintenance Instructions - Zetor Major 80 Operator's Manual

Most of the works of planned technical
maintenance can be done by the driver
or user of the tractor himself/herself. If
you do not have the corresponding tech-
nical equipment, turn to a specialized
garage for the more difficult steps.
All the works related to the clean-
ing, greasing and adjusting the
tractor or articulated machines can
be done only with tractor and other
moving parts at standstill, apart
from the brake, charging and hy-
draulic controls.

MAINTENANCE INSTRUCTIONS

Front bonnet opening .............................................................................................. 120
Checking oil levels in engine ................................................................................... 120
Draining oil from engine .......................................................................................... 120
Replacing full-continuous motor oil filter .................................................................. 121
Pouring oil to engine ............................................................................................... 121
Fuel filter element replacement ............................................................................... 122
Fuel system venting ................................................................................................ 122
Contamination indicator function ............................................................................. 123
Maintenance instruction of dry air filter .................................................................... 124
Main air filter element regeneration ......................................................................... 124
Replacing dry filter locking element ......................................................................... 124
Back assembly of air filter elements ........................................................................ 125
Checking amount of oil in hydrostatic steering tank ................................................ 126
Replacing oil and hydrostatic steering filter element ............................................... 126
Venting hydraulic circuit of hydrostatic steering ............................................... 127
Replacing the hoses of hydrostatic steering ............................................................ 128
Coolant replacement ............................................................................................... 129
Checking the oil in gear box, final drive housing and rear axle .................................... 130
Replacing oil filter element of hydraulic pump ......................................................... 130
Gear system drain plug ........................................................................................... 130
Oil replacement in gear system ............................................................................... 131
Filling, controlling and draining hole of oil of front drive axle ................................... 131
Heating filtration element ........................................................................................ 132
Air-condition filtration elements ............................................................................... 132
Filtration elements cleaning..................................................................................... 132
Draining the condensate from air collector ................................................................. 133
Air system tightness inspection ............................................................................... 133
Air condition maintenance ....................................................................................... 133
Maintenance and treatment of tires ......................................................................... 134
Tire inflation ............................................................................................................. 134
Detaching tractor ..................................................................................................... 134
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