Chute Width Requirements - Martin HD QB1 Operator's Manual

Martin Engineering M4101-01/19
Belt Width + 5 in. minimum
Belt Width
Figure 2. Chute Width Requirements
Inside chute width must be a minimum of belt width plus
5 inches to insure there is adequate space to install cleaner and
tensioner. If chute width is too narrow either the tensioner will
need to be spaced off of the chute wall or the mainframe can
be cut down. The mainframe can only be cut down if the blade
is belt width minus 6 or 8 inches.
6. Inspect belt cleaner mounting area for possible obstructions that could
interfere with proper mounting. Refer to following guidelines:
a. The cleaner can be mounted anywhere on the arc from +30 degrees to
-30 degrees from a center line parallel to the belt line as long as:
(1) The blade is not in the direct flow of discharging material causing
premature blade wear.
(2) The diameter of the pulley is big enough that the blade does not
trap or hold material between the inside of the blade and the belt.
(3) There is at least the equivalent of a 45 degree angle between the
blade and belt to prevent material buildup in this space.
b. Lack of service is the main cause of poor belt cleaning performance.
Follow CEMA guidelines for access:
(1) Clearance for service outside the chute must be at least equal to the
belt width.
(2) Cleaners must have service platforms. CEMA recommends
cleaners be mounted at least 24 in. (600 mm) above the work
platform.
(3) If the belt width is 54 in. (1400 mm) or larger consider access
doors on both sides of the chute.
c. Refer to "Installing Belt Cleaner and Tensioner" and "Part Numbers"
sections of this manual for specific mounting and cleaner dimensions.
6
IMPORTANT
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Martin HD QB1™ Cleaner