Do you have a question about the CS48 and is the answer not in the manual?
Questions and answers
John Rendle
February 12, 2025
My belt sander has been making a very loud screeching sound for sometime. It sounds like dry bearings or something. The machine works fine, but at any minute I'm expecting it to fail. About 4 years old, but hardly used - maybe once a month.
1 comments:
Mr. Anderson
February 12, 2025
A loud screeching sound in a Clarke CS48 belt sander could be caused by several factors, including:
1. Improper Belt Tracking – If the sanding belt is misaligned, it may rub against the machine’s frame or rollers, creating a screeching noise. Adjust the tracking knob to center the belt properly.
2. Worn or Dirty Bearings – Bearings in the rollers or motor may be worn out or clogged with dust, leading to friction and noise. Cleaning or replacing the bearings may be necessary.
3. Debris Build-Up – Sanding debris can accumulate on the belt, disc, or rollers, causing resistance and noise. Use a stick belt cleaner to remove unwanted material.
4. Loose or Worn Belt – A loose or stretched sanding belt may slip, causing a high-pitched sound. Replace the belt if it is worn or damaged.
5. Motor Issues – If the motor is struggling or has internal wear, it may produce screeching noises. Check for overheating or unusual vibrations.
Regular maintenance, including cleaning and adjusting components, can help prevent these issues.
Page 1
BELT & DISC SANDER MODEL NO: CS48 PART NO: 6500430 OPERATION & MAINTENANCE INSTRUCTIONS LS1114...
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This guarantee does not effect your statutory rights. IN THE BOX The following should be supplied inside the box. If any parts are missing, please contact your local Clarke dealer. • 1 x Belt disc sander • 1 x 200mm P80 sanding disc (Fitted) •...
GENERAL SAFETY RULES 1. ALWAYS learn the machines applications, limitations and the specific potential hazards. Read and become familiar with the entire operating manual. 2. ALWAYS use a face or dust mask if the operation is particularly dusty. 3. AlWAYS check for damage before using the machine, check for alignment of moving parts, breakage of parts, and any other condition that may affect the machines operation.
16. NEVER operate machine while under the influence of drugs, alcohol or any medication. 17. NEVER leave machine running unattended. Turn power off. Do not leave the machine until it comes to a complete stop. 18. NEVER force the machine, it will do a better and safer job at the rate for which it was designed.
ELECTRICAL CONNECTIONS WARNING: READ THESE ELECTRICAL SAFETY INSTRUCTIONS THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE MAINS SUPPLY. Connect the mains lead to a standard, 230 Volt (50Hz) electrical supply through an approved 13 amp BS 1363 plug, or a suitably fused isolator switch. If the plug has to be changed because it is not suitable for your socket, or because of damage, it must be removed and a replacement fitted, following the wiring instructions shown below.
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OVERVIEW Disc Sander Table 6 Sanding Belt Table Adjustable Mitre Gauge 7 Tracking Adjustment Dial 8” Disc Sander 8 Belt Tensioning Lever Base With Mountiong Holes 9 On/off Button 4” Sanding Belt Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
ASSEMBLY CAUTION: THE SANDER MUST ASSEMBLED BEFORE USE. DO NOT PLUG UNIT INTO POWER SOURCE UNTIL THE MACHINE HAS BEEN COMPLETELY ASSEMBLED. INSTALLING THE BELT SANDER TABLE 1. Attach the belt sander table to frame with the handwheel and washer supplied. •...
MOUNTING THE SANDER ON TO A WORKBENCH Attach the machine to a workbench or stand before use. 1. Position the machine on the workbench. 2. Mark the workbench through the mounting holes in the sander base. 3. Drill holes in the workbench at the marks.
OPERATION WARNING: NEVER TOUCH THE SANDING DISC OR BELT WHILE IT IS MOVING, DO NOT TOUCH THE WORK PIECE AFTER SANDING, IT COULD BE VERY HOT. WARNING: ALWAYS WEAR SAFETY GLASSES WHEN OPERATING THE SANDER CAUTION: ALWAYS MAKE SURE THE DISC SANDER TABLE AND BELT SANDER TABLE ARE PROPERLY ADJUSTED AND SECURE BEFORE USE.
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SURFACE SANDING ON THE BELT When sanding flat wide surfaces hold the work tightly to the surface of the belt and against the belt sander table. Keep your fingers away from the sanding belt and use a push or hold-down stick if possible. •...
SANDING DISC • To stop the work from lifting, only use the right hand side of the sanding disc. • Keep the work pressed against the sanding disc, moving from the centre of the disc to the right hand edge. •...
• The abrasive discs are attached to the plate with a pressure- sensitive adhesive. 4. Make sure that the disc plate is clean. • Replacement sanding discs are available from your Clarke dealer. Grit Part number Fine 6500440 Medium...
4. Loosen the screws shown and lift off the rear plate. 5. Remove the sanding belt from the rollers. • Replacement sanding belts are available from your Clarke dealer. Grit Part number Fine 6502096...
BELT TRACKING The belt-tracking adjustment is set at the factory so that the abrasive belt will run true on the drums. If, however, the belt should track to one side or the other, an adjustment can be made by turning the tracking knob. TO TRACK THE SANDING BELT 1.
SPECIFICATIONS Motor 230V, 50Hz, 1ph Input Power 550 Watts Fuse Rating 13 Amps Sanding Disc Diameter 8” (203 mm) Sanding Belt Size (W x L) 4” x 36” (914 x 100 mm) Sanding Belt Speed 9.3 m/s Sanding Table Dimensions (L x W) 265 x 150 mm Table Angle Range 0-45 degrees...
EXPLODED DIAGRAM Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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Description Part number Description Part number Rubber Foot AWNCS48001 Flat Washer AWNCS48038 Philips Screw M4×10 AWNCS48002 Rubber Washer AWNCS48039 Bottom Plate AWNCS48003 Adjuster Spring AWNCS48040 Philips Screw (White) AWNCS48004 Belt Frame AWNCS48041 M8×25 Tension Spring AWNCS48042 Lock Washer (White) AWNCS48005 Sleeve AWNCS48043 Flat Washer (White)
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Description Part number Description Part number Power Cord AWNCS48075 Dust Box Cover AWNCS48117 Strain Relief AWNCS48076 Scale Label Left AWNCS48121 Belt Protection Plate AWNCS48077 Scale Label Right AWNCS48122 Relay AWNCS48079 Rotation Label AWNCS48123 Left End Cap AWNCS48081 Belt Tension Label AWNCS48124 Inner Hex Wrench S=5 AWNCS48125...
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Do you have a question about the CS48 and is the answer not in the manual?
Questions and answers
My belt sander has been making a very loud screeching sound for sometime. It sounds like dry bearings or something. The machine works fine, but at any minute I'm expecting it to fail. About 4 years old, but hardly used - maybe once a month.
A loud screeching sound in a Clarke CS48 belt sander could be caused by several factors, including:
1. Improper Belt Tracking – If the sanding belt is misaligned, it may rub against the machine’s frame or rollers, creating a screeching noise. Adjust the tracking knob to center the belt properly.
2. Worn or Dirty Bearings – Bearings in the rollers or motor may be worn out or clogged with dust, leading to friction and noise. Cleaning or replacing the bearings may be necessary.
3. Debris Build-Up – Sanding debris can accumulate on the belt, disc, or rollers, causing resistance and noise. Use a stick belt cleaner to remove unwanted material.
4. Loose or Worn Belt – A loose or stretched sanding belt may slip, causing a high-pitched sound. Replace the belt if it is worn or damaged.
5. Motor Issues – If the motor is struggling or has internal wear, it may produce screeching noises. Check for overheating or unusual vibrations.
Regular maintenance, including cleaning and adjusting components, can help prevent these issues.
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