MTZ 1220.1, Руководство оператора

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MTZ 1220.1/1220.3 K. Scheduled technical maintenance
K28
Operation 34. Check bearings of FDA
reducer kingpin axles
Check and if necessary adjust the bear-
ings (7) of the axles (5, 14) as described
in the section “Adjustments”
Operation 34
а
. Replace filter
drain.
(if installed as an options instead of fan
heater)
Replacement shall be carried out
once per year after 800 hours of opera-
tion.
ATTENTION: for replacement of the
filter drain, contact a special service sta-
tion. Replace only using special equip-
ment.
After every 1,000 service hours
Perform the operations of the previous MS and the following ones:
Operation 35. Tighten engine cylinder
head fastening bolts
Check tightening of the fastening bolts of
the cylinder heads on a hot engine pro-
ceeding as follows:
• Remove the caps and covers of the cy-
linder heads.
• Remove the rocker shafts with the
rockers and poles.
• Using a torque spanner, tighten all
the bolts fastening the heads to a torque
of (210+/-10) N•m in the sequence shown
in the figure on the right (in succession the
figure shows).
Note: Before tightening the bolts, loo-
sen them by 1/6 turn.
• Install the rocker shafts to places and
adjust the clearances between the
rockers and the valves (See Operation
21 of this Manual).
• Install the covers and caps of the cy-
linder heads to place.
ATTENTION! Perform the first check of
bolt torque of the cylinder heads after
running in the tractor.