User Manual

8
SETTING THE DEPTH METER
THE PROPER USE OF THE TAPPING DEPTH METER
Whenever tapping blind holes, the Tapping Depth
Meter in conjunction with the Travel Limiter Stop
must be used for ensuring the prevention of
possible damage to the gearbox and the tap.
ALWAYS ENSURE THAT THE HOLE ISN’T OVER
TAPPED. THE HOLE’S DEPTH MUST BE MUST BE
LONGER THAN THE NEEDED THREADING DEPTH!!
1. Pre-place the tap against the work piece. To
zero-in the needle.
2. While keeping the tap against the workpiece,
adjust the pointer to the 4mm datum position
on the left-hand tapping scale.
(The tapping function has an extra 4mm movement
when the crank handle is released, a 4mm pre-
adjustment has been made on the scale. Therefore,
when "zeroing-in" the tapping scale, the 4mm mark
is the effective datum point. A minimum depth of
5mm can be tapped and a maximum of 40mm).
Now that you have the depth scale calibrated, you
may use the meter reading to set the Travel Limiter
Stop.
SETTING THE TRAVEL LIMITER STOP
When at its lowest position, the travel limiter stop
will not effect the stroke of the slide. When tapping
blind holes the travel limiter stop must be used to
avoid the tap bottoming. When tapping through
holes or when drilling, the limiter stop is not
needed.
To properly set
1. With the tap mounted on the machine, place
the machine on the workpiece.
2. Using the depth meter, Carefully measure the
furthest depth that the tap is intended to go.
With the tap overhanging the edge of the
workpiece, lower the slide to the intended
depth.
3. Loosen the lock nut then adjust the stop to
just meet the slide, retighten the lock nut.
4. When no longer needed, lower the stop to its
lowest position.
travel
limiter
stop
lock nut
Blind Hole
Work Piece
Tap
30
25
20
15
10
5
0
65
60
55
50
45
40
35
100
95
90
85
80
75
70
105
110
115
120
125
130
135
140
145
150
Drilling Scale
40
35
30
25
20
15
10
4
Tapping Scale