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2019-03-14
196-538M
3N-40P
Maintenance and Lubrication
144
3. To adjust box alignment, shorten or lengthen stop
bolts to change the contact point with the tool bars.
Adjust stop bolts
in or out until dimension
is
0 to
1
/
4
inches (0 to 6 mm) greater than
dimension
.
If you have trouble getting box aligned it may be
necessary to adjust fold cylinders (“
” on page 142). Do not over-adjust or you
may cause fold latching problems.
Box alignment, fold cylinder and tongue spacer shim
adjustments are closely interrelated and may have to
be adjusted in tandem. Adjust fold cylinders to
enable complete 90 degrees of travel to latch wings
and to unfold for box alignment. Then adjust tongue
shims to remove as much play as possible in
transport without preventing proper latch operation.
Lack of proper fold cylinder adjustment will cause
difficulties with wheels by not allowing full rotation of
caster wheel assemblies.
Tongue Spacer Block
If the folded drill does not pull straight, wanders back and
forth while being towed, or fails to latch during folding, it
may be necessary to replace or adjust one or more
tongue spacer block assemblies.
Refer to Figure 197 (which depicts right tongue tube)
There are four of these block assemblies on the drill
tongue. Two are on the inside, and contact each other
when folding. Two are on the outside, and contact the
wing main frames when folded.
The amount of contact should be just enough to prevent
sway, but not so much that it prevents reliable transport
latching during fold.
If the skid blocks ( , ) are worn or deformed, replace
them.
If the skid blocks are serviceable, and there is a gap
when folded, add a shim . Consult the latest Parts
manual for the current shim part number.
When re-installing:
•
The inside blocks must be exactly opposite each
other, and are located 122 in. (3.1 m) from the
forward end of the tongue tube wall (dimension ).
•
The outside blocks are located 155 in. (3.74 m)
from the forward end of the tongue tube wall
(dimension ).
It is normal for the tongue assembly to rotate slightly
when the wings move up and down independently.
Adjusting tongue shims does not eliminate this.
A
B
.eps
100%
Figure 197
Tongue Spacer Blocks
20362
1
2
3
4
5
6
7