14
MANTA I
Revision 03/05, Effective Date March 2, 2005
15
MANTA I
Revision 03/05, Effective Date March 2, 2005
If within one (1) year from the date of purchase, this MK Diamond drill
fails due to a defect in material or workmanship, MK will repair it, free
of charge, by returning the unit to the dealer where it was purchased.
This warranty DOES NOT cover normal wear or damage resulting from
operator abuse. In no event shall MK Diamond Products, Inc. be liable
for consequential damages arising out of the failure of any product if
operating improperly. Selected components such as motors/engines
are excluded from this warranty and are subject to the manufacturer’s
warranty. Each manufacturer carries its own warranty conditions which
are listed on the literature accompanying the motor/engine at the time
of purchase. MK Diamond Products may act as a warranty station
for the motor/engine repairs based on individual agreement with the
manufacturer. This warranty is in lieu of all other warranties expressed or
implied.
Warranty Information
PROBLEM
Bit Stuck
Shear Pin Fail
WHAT TO DO?
1. Try to raise
bit, if impossible:
2. Stop rotation
1. Stop rotation
2. Raise bit
INDICATION
Loose material
(cut steel or
aggregates) is
blocking between
core and bit or
between borehole
and bit.
Drill moved during
drilling (poor
fastening).
Bit deviates, guide
ways on cradle
have too much
clearance.
No clearance
between tube I.D.
or O.D. and crown
I.D. or O.D.
Drill impacted
to stall at lower
speeds.
SOLUTION/ RECOMMENDATIONS
Step 1: Apply wrench and rotate
bit in both directions while bit is
under tension. If not successful:
Step 2: Try to over drill a hole
slightly larger than the stuck bit.
Disconnect bit and remove,
break core. Start over with
improved fastening of machine.
Disconnect machine, adjust
guidance.
Replace bit.
Use recommended speed for
the bit diameter used. Raise bit
when it begins to load down.
Feed bit slowly when chattering
begins.
