Valtra Small A Series, Руководство по обслуживанию, Страница: 21 / 31

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14.1 Valtra service
Maintenance
Correct maintenance at the right time is a basic condition
for reliable operation of the tractor. Maintenance include
lubrication and various checks and adjustments.
The service intervals shown apply for normal operating
conditions but in more severe conditions servicing should
be carried out more frequently.
Carrying out the maintenance
- Always stop the engine before doing any servicing work.
- Apply the parking brake to ensure the tractor cannot
move. If the ground is uneven the wheels should be
blocked.
Always observe the utmost cleanliness in all
maintenance work. NOTE: Do not let the water get to the
electrical equipment when washing the machine.
Thoroughly wipe off filler caps and plugs as well as
surrounding parts of the tractor before filling up with fuel
or oil.
Inspect the oil and filters when changing. Large amounts
of dirt (e.g. heavily clogged filters) can point to a fault
which could cause extensive and costly repairs if not
corrected in time.
When carrying out checks the tractor should stand on
level ground.
Levels should be checked before driving when the oil is
cold and has had time to run down to the bottom of the
unit concerned.
When changing the oil, bear in mind that the oil can be
very hot when it drains from the tractor.
Avoid touching the exhaust manifold, turbocharger and
other hot parts of the engine.
Keep the engine surfaces clean in order to avoid the risk
of fire.
The fuel, lubricating oil and coolant cause irritation to skin
if in contact for long periods.
After completion of any service work replace all safety
covers etc.
Waste oil, liquid waste, oil filters and batteries should be
handled carefully and disposed of properly.
19
Greasing lubricating points fitted with grease
nipples
- Always clean the grease nipples before applying the
grease gun.
Pump in grease to the nipples until clean grease is
squeezed out (unless otherwise instructed).
Wipe off all surplus grease which has been squeezed out
at the lubricating points.
Preferably carry out lubrication with bearing points and
joints unloaded and with the bearings in different
positions ( e.g. lubricate the steering knuckle bearing on
the steering axle with the wheels at both full left and right
lock and with the front axle lifted up).
Scheduled maintenance
NOTE: All intervals are counted from zero hours on the
hour recorder. For example, the 500 hours service is carried
out after 500, 1000 hours etc. even if the measures have
been carried out at the guarantee service (=100 hours
service).
Example: The 1000 hour service contains all items
mentioned under the 10 hr/daily and the 50 hr/weekly
checks as well as the 500 hr service.
Service inspection (after 100 hours)
Service inspection after 100 hours running to all new
tractors.
The following steps should be taken:
20 Engine
Change engine oil and filter
Change prefilter of fuel system
Change fuel filter
40 Power transmission
- Change filter
60 Steering system and front axle
- Change oil in differential
- Change oil in planetary gears
90 Hydraulic system
Change pressure filter and clean hydraulic pump suction
strainer
General
Road test tractor. During the road test check all the
functions of all the controls and instruments. After the
road test, check for oil leaks, check the coolant and fuel
system.
14.MAINTENANCE
Issue No.
1 02.12.2013
Model
A53/63/73
Code
140
Page
2