2
EAK0366L08A Rev. A
General Safety Information
Risk of personal injury, unsafe conditions and equipment
damage.
•
Before repairing this unit, read this instruction sheet
completely.
•
Follow and perform these instructions as written.
•
Use the proper personal protective safety equipment and
tools as applicable for the work you are performing.
•
Use a helper when lifting, handling and assembling heavy
and large parts.
•
Avoid pinching your fingers when sliding or moving parts.
•
Check and replace all damaged and worn parts as
required before returning the unit back into operation.
Not following these repair and safety instructions can result in
personal injury, unsafe conditions and equipment damage.
Repair Instructions
Removal
(See
Figure 1
for reference.)
1. If applicable, remove all targets from their mounts.
2. Remove the four screws (
K
) attaching the end caps (
J
) to
the cross beam (
C
), and then remove the end caps.
3. Loosen and remove the four target mount brackets from
the cross beam. Note position of target mounts before
removal.
4. With the use of a helper, hold and support the cross beam
assembly while removing the hex head pivot screw (
H
).
This will allow you to remove the cross beam as an
assembly.
5. Discard all parts removed, except the target mounts.
Installation
(See
Figure 1
for reference.)
The following steps may be competed by first assembling the
cross beam as a subassembly on a workbench, and then
installing it on the mast.
1. Install the four original target mount brackets onto the new
cross beam (
C
). The target mounts are numbered and
must be positioned in sequence on the cross beam left to
right, with number “1” mount on the left side.
2. Install the new cross beam end plates (
J
) using two new
self tapping screws per side (
K
). Tighten the screws to 3.7
lb-ft. (4-6 Nꞏm).
3. Position the new lower mount bracket (
D
) on the center of
cross beam, then fit the new upper mount bracket (
G
) to
align with the lower bracket.
4. Attach the brackets to the cross beam using two new hex
bolts (
F
) and three new hex nuts (
A
). Apply thread locker
to hex bolts and tighten nuts to 7.4 lb-ft. (8-12 Nꞏm).
Tighten hex nuts to 2.2 lb-ft. (2.5-3.5 Nꞏm).
5. Install the new spirit level (
B
) to upper mount bracket (
G
)
using two new hex nuts (
A
). Tighten the hex nuts by hand
until just tight. Do not overtighten the nuts or you may
damage the level.
6. Install the new plunger assembly (
E
) to the lower mount
bracket (
D
) with two new hex nuts (
A
). Tighten hex nuts to
2.2 lb-ft. (2.5-3.5 Nꞏm). Do not overtighten nuts. After
installation ensure the plunger moves freely.
7. Install the new flanged (pivot) bearing (
I
) through both
upper (
G
) and lower (
D
) mount brackets.
8. With the use of a helper, hold and support the cross beam
assembly while positioning into place, and then install the
hex head pivot screw (
H
). Tighten screw to 177-266 lb-in.
(20-30 Nꞏm). Ensure cross beam rotates freely after
tightening the screw.
9. Ensure cross beam operates normally after installation.
Ensure pivot and plunger mechanisms operate normally,
allowing free rotation and secure locking.
8"3/ */(
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