
2019-03-08
196-359M
3N-4010F, 3N-4010HDF, and 3N-4020F
Maintenance and Lubrication
102
Box Alignment
To check and adjust box alignment:
1. Unfold drill (see “
and place a block ahead of each wing caster wheel.
Pull drill forward against blocks to rock frames back.
Pull forward until stop bolts are firmly against
toolbars.
2. Check for proper alignment by running a string line
across back of drill toward outer ends of wings. For
proper alignment, outside ends of boxes (dimension
) should be 0 to
1
4
in (0 to 6mm) ahead of inside
ends (dimension ).
3. To adjust box alignment, shorten or lengthen stop
bolts to change the contact point with the toolbars.
Adjust stop bolts in or out until dimension is 0 to
1
4
in (0 to 6mm) greater than dimension .
If you have trouble getting box aligned it may be
necessary to adjust fold cylinders (see “
” on page 100). 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.
Figure 143
Stop Bolt
20317
1
Figure 144
Box Alignment (wing angles exaggerated for clarity)
20326
A
A
B
B
A
B
A
B