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Great Plains Manufacturing, Inc.
Maintenance and Lubrication
115
04/09/2019
166-283M
Contact Drive Re-setting
Refer to Figure 101 and Figure 102
There is one contract drive tension spring
on the sin-
gle contact drive. The contact drive tire
is held in con-
tact with the main transport tire
by the tension of the
spring. A linear actuator
, under control of the seed
monitor, raises the arm and tire out of contact as com-
manded by the implement lift switch.
If there seems to be:
• insufficient traction between the contact drive tire
and the main transport tire
, or
• excess spring force at contact tire,
check tire sizes and inflation (page 149). Use tire sizes
specified by Great Plains, at recommended pressures.
Do not attempt to compensate for worn, under-inflated or
incorrect tires by adjusting spring tension.
Null4:
If any spring assembly components are replaced, the
factory settings for spring assembly length are:
Null4:
Figure 101
Contact Drive Spring
31182
2
3
1
4
10.0 cm (3
15
16
in)
cup position: measured from the center-line of the
rear clevis pin to the base of the spring cup
43.8cm (17
1
4
in)
overall length: measured between pin centers
Null4:
Figure 102
Contact Drive Spring
31183
5
6
Содержание NTA2007HD
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Страница 177: ...Contents Index 173 04 09 2019 Contents Index 166 283M BLANK ...
Страница 178: ...Great Plains Manufacturing Inc Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA EOD ...