MTZ 1220.1, Operator'S Manual

Page: 216 / 244

MTZ 1220.1/1220.3 K. Scheduled technical maintenance
K36
After every 2,000 service hours
Perform the operations of the previous MS
and the following ones:
Operation 47. Diesel engine starter
• Clear starter from dirt and dust.
• Remove screws (1) and cap (2).
• Check collecting channel (3), brushes
(5) and springs (4).
• Make sure that brushes (5) move easi-
ly. Replace the brushes when their
height is 10 mm.
• Spring force (4) shall be 0.75...1.00 kg.
• If collecting channel surface is worn too
much or burned, send starter to job-
bing plant for repair.
• Check electromagnetic relay contacts
condition. In case there is burning face
up bolts with fine grain abrasive paper.
Operation 48. Engine fuel pump
The delivery commencement angle of the
fuel pump must be within the limits speci-
fied the table on the right. Only a qualified
technician should check and adjust the
delivery commencement angle.
IMPORTANT! Adjustment of fuel equip-
ment by tractor operator (ower) is a rea-
son for termination of manufacturers war-
ranty liability.
Remove the pump and send it to shop for
bench check of conformity to the adjust-
ment parameters (speed mode, rated deli-
very per stroke, delivery per stroke, etc.).
Adjustment of timing angle, deg. to UDC
Д
-245.2S2
3,5±0,5