Question about Craftsman 20 Power Dumpy Level
How do you measure the depth of an excavation to a predetermined point just above the surface of the ground usinga dumpy level.
First level it up in all directions then take a shot of your tape measure or marker stick at the predetermined point, write this measurement down, then take a shot of your tapemeasure reaching down in the excavation and then subtract the predetermined measurment from the excavation measurment and this will tell you how much deeper your are than your predetermined mark.
Posted on Feb 13, 2009
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Jun 29, 2011 | Mitutoyo Depth Micrometer 0-6"
Hello. Mitutoyo has both calibration and repair services if required.
Hope this helps out. Thanks.
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Feb 03, 2011 | Craftsman 20 Power Dumpy Level
Your planer is equipped with a turret stop (M), shown in
Figure 11, for repetitive planing of pre-set depths. Stops are
set at 0", 1/4", 1/2" and 3/4". Use the 0" setting when planing
between 1/8" and 1/4".
TO SET A PLANING DEPTH
1. Be sure the carriage is set above 1-1/4" before trying to
set the turret stop.
2. Turn the turret stop until the desired measurement
shows (Fig. 11).
3. Unlock the head lock lever (Fig. 8). Turn the depth
adjustment crank, lowering the carriage by the desired
increments, until it contacts the turret stop.
NOTE: DO NOT USE FORCE TO CRANK THE CARRIAGE
BELOW THE LEVEL THAT THE TURRET STOP INDICATES.
PERMANENT DAMAGE TO THE HEIGHT
ADJUSTMENT SYSTEM ON YOUR PLANER WILL
NOTE: The 3/4" turret stop can be adjusted for other planing
thicknesses. Adjusting the 3/4" turret stop does not affect the
other turret stop settings.
TO ADJUST THE 3/4" STOP FOR OTHER
1. Unlock the head lock lever (Fig. 8) and turn the adjustment
handle counterclockwise to raise the cutter head.
2. From the back of the tool, locate the turret adjustment
bolt (N) shown in Figure 11. This bolt is set for a 3/4"
depth of cut at the factory. Use the crescent wrench provided
to loosen the jam nut. Adjust the bolt up or down to
reach the desired planing depth.
3. Turn the depth adjustment crank, lowering the carriage by
the desired increments, until it contacts the turret stop.
Hope this helps.
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