Clarke Metalworker CL251MH 운영 및 유지 관리 지침 - 페이지 11
{카테고리_이름} Clarke Metalworker CL251MH에 대한 운영 및 유지 관리 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. Clarke Metalworker CL251MH 16 페이지. Metalworker milling/drilling attachment
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MAINTENANCE
or maximum performance, it is essential that the Drill Press is properly maintained. Always
F
inspect before use. Any damage should be repaired, and maladjustments rectified.
If you are unable to rectify any faults, please contact your local dealer or Clarke
International Service Division on 020 8556 4443 for assistance.
Monthly
(When in regular use)
Check tightness of mounting bolts, and, head and column securing set screws.
If the mains lead is worn or cut, or damaged in any way, it should be replaced immediately.
Lubrication
All bearings are packed with grease at the factory and require no further lubrication.
Lubricate the Quill Shaft assembly with light oil, weekly.
After use
Remove all swarf from the machine and thoroughly clean all surfaces.
Components should be dry, with machined surfaces lightly oiled.
Always remove Mill/Drill bits, and store in a safe place.
CUTTING SPEEDS
In order to preserve the cutting tool, avoid damaging the workpiece and to produce a good
finish, it is important to ensure the correct Cutting Speeds are used. Cutting Speed is the rate
at which the cutting tool passes over the work, and is given in Feet Per Minute.
Factors which determine the best speed to use in any operation are:
As a general guide, the Mill/Drill speed for a given bit size is according to the table below,
using a light to moderate Feed rate. DO NOT force the tool.
Generally, the smaller the Mill/Drill the greater the required RPM. In soft material, the speed
should be higher than for hard metals.
IF you are not familiar with materials and cutting speeds, it is strongly recommended that you consult a
qualified person or attend a suitable course on the subject.
Bit Size
Alum & Brass
Zinc Diecast
Iron & Mild
Steel
• Kind of material being worked, and its hardness value
• Quality of cut desired
• Type and size of Drill/Mill
• Depth of Cut
• Rate of Feed
3
4
2000
2000
2000
2000
5
6
1850
1600
1650
1350
11
8
10
1400
1000
1000
800