Hyd-Mech DM8 - Troubleshooting; Blade and Cutting Problems

10--1
This chapter deals with inspection and troubleshooting procedures for the DM 8.
Regular inspections and adequate machine maintenance are indispensable for
long machine life and trouble---free operating. This chapter is divided into two
parts: the first section is dedicated to troubleshooting blade and cutting problems;
the second Troubleshooting section relates to general machine functioning
problems. This guide is intended to help in searching out problems and taking the
correct action to solve them.
Blade and cutting problems
PROBLEM PROBABLE CAUSE SOLUTION
Blade scored or scratched
' Blade guide chipped or worn .Replace
' Blade guide loose or tight .Adjust
' Blade guide dirty .Clean and re--adjust correctly
Cutting surfaces scored
' Blade teeth worn .Replace blade
' Head downstroke speed too fast .Reduce downstroke s peed
' Cutting speed too s low .Increase cutting speed
' Blade teeth too wide .Change for wider teeth
' Free blade guide head too far away .Move blade guide head closer so as
to leave only that part of the blade
free which is needed to effect the cut
' Blade tension low .Reset tension to rated tension
' Broken teeth on blade .Check and replace blade
Blade path fault
(cuts bellied both vertically and
horizontally)
' Front flywheel position incorrect .Check that the band saw is correctly
positioned on the flywheel. Adjust
the position of the flywheel under the
blade, moving the shaft of the fly-
wheel
MATERIAL MATERIAL
' Flywheels worn .Replace
' Gaps full of swarf .Clean inside machine using blown
air.
' Blade guide head alignment .Check and adjust
10
Troubleshooting