63
TROUBLE SHOOTING
Problem
Possible Causes
Solutions
Undercut does not match scale
readings
Adjustment required
See adjustment procedures in
Section 4-17
Butt spacing has changed
One or more index blocks have
moved
Reset blocks and mark locations
with a metal scribe. It is recom
-
mended you check your butt
spacing regularly
Butts will no longer fit into
mortise
Router bit undersized
Adjust the stop bolts on the side
of the router to compensate for
sharpening of router bits. CAU
-
TION: If the router bit is much
under size, the hinge radius
will not fit into the mortise even
when the stops are adjusted to
give the correct dimension
Mortise is deeper in the door
than in the jamb
Jamb is not up against the bot
-
tom of the router carriage
Raise the jamb rack
Router carriage is not level when
mortising
See adjustments in Section 4-19
Edge of door and jamb rack are
not parallel
Make sure the door edge is 2-
1/2” above the main bar at both
ends of the door
Faceplate mortise is not centered
Back-up block is wrong thickness Use good quality 3/4” particle
board.
Missing or worn drill clamp pads Replace clamp pads
Template holder out of adjust
-
ment
See adjustment procedures in
Section 4-15
Lock drill motor is consistently
tripping reset
Low line voltage at motor
Check voltage at motor
Motor drawing excess amperage Repair or replace motor
Plunge speed is too fast
Slow plunge speed using flow
control valves on Lock Drill
cylinder
Dull drill bit
Replace bit or blades if you have
an insert type bit