Manual TwinSaw CDC double cut saws
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2.3 Motor housing
The twin-saw system has clear advantages when it comes to cutting efficiency and requires
about 40% less energy than two single-blade saws of similar size. As the twin-saw machine
has to accommodate a much more powerful motor than the single-blade system, but in the
same size of motor housing, there may be an increasd heat build-up when cutting tough
materials and when making deep incisions.
In heavy cutting work avoid overloading the machine through motor overheating. Using the
power saw in short bursts will give the motor time to cool down.
2.4 Pump grip
The pump grip shown in the Figure acts both as a front
hand-hold and as a reservoir for the lubricant. The grip is
attached to the gear unit by an M14 bolt. The bolt must
not be over tightened, as this can damage the thread. A
certain amount of force is required to remove the
aluminium plug beneath the unit in order to top up/refill
with oil.
The elbow fitting should be hand-tight on the inner thread
of the internal shaft at the rear of the machine. Do not
overtighten. The hose consists of a special oil-resistant
material. A damaged pump unit must always be replaced.
The TwinSaw company and its agents always have
replacement pumps in stock.
To initiate pumping depress the plastic nipple on the top of the
unit. Lubricants are now bio-degradable. This means that
biological breakdown begins inside the pump and overlong
lubricant retention leads to bacteria build-up and sludge
formation. The pump unit should therefore be completely emptied
and refilled now and again.
Depress the pump button to supply lubricant when cutting metals.
Continuous lubrication is especially important when cutting soapy
materials in order to prevent cold welding. Always use the correct
oil.
2.5 Lubrication
Cool +
is a suitable cutting fluid and lubricant for almost 95%
of materials, the technology is able to cut. It is delivered with the
sets and should used with every cuts.
For normal metals pump at the rate of one or two times a minute and for
aluminium, lead and bitumen pump every 5 seconds.
The lubricant is forced from the hand-grip down the hose and along the inner shaft before
penetrating between the saw-blades. Centrifugal force then slings it towards the outer blade
zones. This pump system produces an 80% saving on lubricant compared the external
lubrication method.
