Starting The Driling Process - Metabo BE 1100 Operating Manual

Operating Guide

4.3.2 Starting the Driling Process

The drilling process starts by creating a center hole with the
pilot drill :
- The maximum rpm is chosen from switches
-The feed is started lightly by very slowly turning the feed
wheel clockwise.
- Feed very slowly in the beginning to ensure a good
centering of the central drill.
- A penetration of the pilot drill through the main pipe wall
can be observed by observing the pressure meter ⑦.
Raising of the needle indicates the penetration.
- An adequate feed using the max. rpm must be continued
until the pilot drill gets through the wall of the main line.
- After the pilot drill is through, the turning speed for the
hole saw has to be adjusted as described in chapter 4.2.6
- Start the feeding with the hole saw carefully and keep
a fixed stand. Extra caution must be pointed to cope the
reaction forces. Pull the machine in the direction shown in
the picture to compensate the force.
- When the drilling advances, the feed rate can be slightly
accelerated until at the end of the drilling.
-The final penetration of the main pipe wall can be
confirmed by pushing the shaft forward firmly without
turning shaft - When it advances, the hole must be free.
CAUTION: The drive must never be locked to
continuous run, since the variations of
machining forces may cause an unexpected
lost of control of the drive and thus cause
severe damage to the operator. Be aware
of the reaction forces from the cutting.
WARNING: The drive and the shaft must always turn
CLOCKWISE. Accidental opening of the
connecting threads of the shaft may cause
severe damage to the operator.
WARNING: NEVER use lever tools at the feeding wheel
and feed very carefully ! When the hole
saw gets stucked, stop feeding or turn the
saw a little bit backwards. Continue
feeding slowly !
16 | VI.KD.G1.02
JIP Hot Tapping Machine
and .
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