MAXCUT STEALTH-12 OPERATOR’S MANUAL
MAXCUT INC.
Page 19 of 31
MADE IN U.S.A.
6.3.2. Mode of Cutting
Plunge vs. Slab - Plunge cutting increases diamond segment wear
because both impact and loading increase. Depending on the ratio of
plunges and the cutting depth, chain life can be reduced.
Buried nose vs. Through cut - When cutting with the bar nose buried in
the cut, the slurry increases the wear on both the chain and segment.
It can be expected that both the segment life and chain life will be
decreased.
6.3.3. Direction of Cutting (Horizontal vs. Vertical) - Cutting horizontally decreases
chain life. When cutting vertically (up or down), feed load is applied mainly to
the top diamond surface. Cutting horizontally applies downward load to the
diamond top and gravitational load to the diamond side from the tool weight.
This side load creates non-uniform side wear on the segment and can
eventually cause side clearance loss.
6.3.4. Cutting Technique (Impact vs. Smooth) - Impacting the cutting surface with
the chain decreases the chain life. Impact forces create excessive stress and
wear in the chain components. Impact forces also dull the diamond
segments, decreasing the segment life and performance.
6.3.5. Rotational Speed - Optimum cutting performance is achieved when operating
with a hydraulic input of 12 GPM (6500 RPM). Operating with a hydraulic
input excess of 12 GPM will decrease the life of both the segment and chain.
6.3.6. Excessive Feed Force - Excessive feed force dulls the diamond segments,
decreasing the segment life and performance.
6.3.7. Chain Tension - Improper chain tension increases chassis wear in the rivets
and/or drive link holes, possibly ―stretching‖ the chain beyond its usable pitch
diameter.
6.3.8. Improperly Maintained Bar and/or Drive Sprocket - Improperly maintained bar
rails, nose sprocket, and/or drive sprocket can increase the chain chassis
wear, causing premature ―stretching‖ and possibly uneven segment wear.
6.4. CHAIN END-OF-LIFE MODES
There are three different end-of-life conditions that can occur, depending on a specific
combination of factors as discussed in Sections 6.2 and 6.3. These conditions are as
follows:
6.4.1. Wear Out of Diamond Top Surface - This condition occurs when the diamond
segment height is worn down to
about 1/16‖ (0.0625‖ or 1.5 mm) remaining.
6.4.2. Loss of Diamond Side Clearance - This condition occurs when the diamond
side surfaces are worn at a rate higher than the diamond top surfaces. The
resulting end-of-life condition is a diamond segment width of abou
t 0.187‖
(4.7 mm).
6.4.3. Wear Out of Chain Chassis - This condition is characterized by worn chain
rivets and chain drive link holes, and appears as ―stretch.‖ This mode leaves
a portion of the diamond segment unused. Excessive ―stretch‖ is evident
when the drive links can come completely out of the groove after tensioning
the chain mounted on the bar.
