
6.2.3 Prepare Entrance Trench
~
WARNING
Entrance and exit trenches may be
unstable and dangerous. These
trenches must be shored to meet
federal, state and local guidelines
or injury to personnel could occur.
Excavate the entrance trench to the depth,
width and length required to properly align
the piercing tool and work comfortably.
Shore entrance trench to meet safety
guidelines. Allied’s TrenShore is recom-
mended.
Trench length should:
•
Allow enough room for the operator to
push the Hole-Hog into the wall to be
pierced, approximately one foot beyond
the end of the whip hose.
•
Permit a soft bend in the Whip Hose. Do
not crimp the air supply.
6.2.4 Prepare Exit Pit or Target
Excavate the exit pit. The length, width,
and depth of the exit pit should exceed the
entrance pit dimensions by 6 in. to 10
in./152mm to 254mm.
In cases where the exit pit length is limited
and for blind holes, the unit is reversed and
drives itself back out through the pierced
hole.
6.2.5 Prepare The Hole-Hog and Air Hose
1. Refer to Section 10.0 Maintenance and
perform Daily and Preventive Mainte-
nance.
2. Review all of Section 7.0 Lubrication.
Startup Lubrication, Section 7.1 must
performed at the beginning of piercing
operations, Section 6.2.7
3. To monitor Hole-Hog travel along the
piercing path, mark the air hose in two
ways.
a. Place tape at two foot intervals along
the hose.
This provides an indication of how far
the Hole-Hog has traveled along the
path.
b. Measure the total length of the pierc-
ing path. Measure that length from
the piercing tip, back along the
Hole-Hog and hose. Make a special
tape mark at that point.
This provides an indication of when
the piercing
tool should reach the
exit point. It will also indicate if the
tool has been deflected off course.
4. Connect air supply hose to compressed
air supply and purge air hose.
6.2.6 Position and Aim The Hole-Hog
1. Verify that the bottom of the entrance
pit is at the depth (elevation) deter-
mined in Section 6.2.2, step 3.
~
WARNING
Do not manually lift any unit over
88 pounds (40kg). Use slings on
either end of the Hole-Hog to lift
the Hole-Hog in and out of the
trench.
A
LLIED
4000 Series Hole-Hog
14
Содержание 4001
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Страница 15: ...7 ALLIED 4000 Series Hole Hog 3 2 1 Figure 3 2 Hole Hog Decal Location Hole Hog CE Serial Number Plate ...
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