Overload Protection - RIDGID HC-2 Bedienungsanleitung

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Bedienungsanleitung (35 Seiten)

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PROBLEM SOLVING DRY AND WET DRILLING

1. Diamond core does not cut

Core is glazed or not sufficiently dressed: redress with

sharpening stone.

Problem with bit or machine: check and replace when

necessary.

2. Diamond drill does not cut or drills too slowly

RPM too high or too low: check speed.

Insufficient feed pressure.

Diamond bit is glazed or polished: use sharpening stone.

When dry drilling: material is too hard to drill dry.

When wet drilling: a lot of steel is being drilled: continue

slowly, give the core bit the time to drill through the steel.

3. Diamond core jams in the hole

Operator is not holding the drill straight enough.

The drilling debris is not cleared regularly and is jamming

the core bit: use dust extractor.

Diamond bit is bent (damaged): check and replace.

Wet drilling: inadequate water supply.

Motor clutch set is worn out: replace.

4. Diamond core is wearing too quickly

Incorrect drilling speed: check RPM. Try next faster speed.

Excessive feed pressure: reduce force.

Wet drilling: insufficient water.

Wet drilling: Material is very abrasive and/or heavily

reinforced: use special bit.

Drilling machine not held steadily.

Drilling machine is hammering: don't use the hammering

system for core drilling.

5. Segments of the diamond core are losing side clear-

ance

Drilling machine not held steadily.

Bit spindle or adapters are damaged.

Core bit is damaged or bent.

Insufficient water.

Material is too abrasive: use special bit.

Dry drilling: Cutting/drilling dust is building up and

jamming the core: regularly clear the hole or use the dust

extraction.

6. Segment loss

Core bit doesn't run concentric.

Drilling/cutting debris is building up and is jamming the

core.

Material cannot be drilled dry.

Core bit is being forced too hard: reduce feed pressure.

Insufficient cooling water.

7. Segments are folding in or out

Excessive pressure.

Too high speed.

The drilling machine is left on "hammer".

8. Core is lodged within the diamond bit

The heat has expanded the material which is now lodged in

the bit: let it cool down, eventually use water.

The core has broken within the diamond bit: remove core.

The bit has lost its side clearance: check that the bit,

machine etc. is running concentric. If necessary retip the

diamond bit.

9. No water flowing out of the bore hole (wet drilling)

Water swivel, drill spindle or water supply are blocked; free

the blockage.

Material within bit is blocking the water: remove core from

the bit.