Handlebar Adjustment; Connect The Vacuum Cleaner; Grinding Guide Diamonds - Husqvarna PG280 Operator's Manual

Handlebar adjustment

The handle can be infinitely adjusted. The handle lock
knob has two positions, one locked and one open
position.
• Folding up the lock knob to open position will release
the clamp holding the handle and it can be adjusted to
the desired position.
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• Fold back the lock knob to locked position.
• How hard the lock knob clamps in locked position is
easily adjustable by turning the bushings under the
lock knob.

Connect the vacuum cleaner

Use a Husqvarna dust extraction system for complete
dust control.
• Connect the vacuum cleaner to the machine. Use a
50 mm (2 inch) hose.
Make sure that the filters in the vacuum cleaner are intact
and clean. Pay attention to dust during operation.
10 – English
OPERATING
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Grinding guide Diamonds

Background
The diamond segment comprises usually of two
components:
• Diamonds (also called diamond crystals or corn).
Changing the size of the diamonds or corn will change
the coarseness or fineness of the scratches after the
grinding process.
• A bonding agent (metal or plastic). Powder is mixed
and suspended in a metal or plastic bonding agent. If
metal is used as a bonding agent, the finished product
is called metal-bonded or sintered diamond segment.
If plastic is used as a bonding agent, the finished
product is called plastic-bonded diamonds or
polishing disc. By changing the hardness of the
bonding agent, you can change how quickly or slowly
the diamond abrasive is worn down.
General Principles
General rules for using diamond tools when grinding
follow below. As with all rules, there are exceptions or
occasions when they do not apply.
Diamond grit size
Changing the size of the diamond grit to a smaller
particle/grit size will effect the performance of the
diamond tool in the following ways:
• Create a finer scratch pattern.
• Increased service life of diamond tools.
The opposite will occur when changing to a larger
particle/grit size.
Binding agent
Increasing hardness of bond will:
• Create a finer scratch pattern.
• Increased service life of diamond tools.
• Decrease production rate.
The opposite will occur when making the metal or resin
bond softer.