Trelawny TCG 250, Operation And Maintenance Manual

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starting
Machine Operation and Dust Suppression
Machines fitted with petrol engines
Check that there is sufficient fuel in the fuel tank.
(See manufacturer’s hand book for type.) Check that the
engine oil level is correct. (See pre-start check.) Ensure that
the machine is started on a level surface. Open the engine
fuel tap. For cold engine starting, the 5.5hp engines have an
automatic choke, apply full throttle to operate. Set the start
switch to the “on” position on Honda supplied engines.
To engage the stand, tilt the machine to lift the grinding
head(s) and, whilst tilted, depress the foot pedal (at the rear
of the machine, between the wheels), keeping it depressed
whilst lowering the machine back towards its normal working
position. This action will result in the front of the machine
appearing slightly raised. To disengage the stand ready for
use, tilt the machine rearwards slightly and the stand will be
heard to retract. The grinding head(s) will now be engaged
with the working surface.
Check that the machine has been raised on its stand. Pull the
‘hold to run’ lever against the handle bar. Pull the recoil starter
cord handle. After the engine starts, move the throttle lever
towards the idle/tick-over position until the engine
runs smoothly.
After a minute or two reduce to a quarter open throttle setting
and warm up the engine for a further 2~3 minutes before
setting to tick over. The warm up procedure is particularly
important during cold weather.
(Please refer to manual handling recommendations when
lifting.) Connect a suitable commercial vacuum which has
been designed for the collection of concrete dust and
possibly toxic paint particles, or for use in the pharmaceutical
or food industries, Trelawny can supply special HEPA filtered
vacuums which are suitable for these applications.
Or if suitable for the area being worked, connect a water hose
to the supplied connection at the rear of the machine.
On engine-powered machines, once the engine has reached
operating temperature and you are ready to start work, set
the throttle lever to the full throttle position, pull back on
the handle bars to retract the machines stand and slowly
lower the disc to the surface. The machine may oscillate
slightly during use, which is normal. Move the machine slowly
backwards and forwards, slightly swinging the grinding head
right and left; this will ensure that a uniform finish is achieved.
Complete a small area noting the performance; on engine
versions reduce the throttle to tick over and release the ‘hold
to run’ lever. Then on both engine and electric motor versions
release the ‘hold to run’ lever to stop the machine, inspect the
finish produced. If necessary change the grade of grinding
blocks or diamond discs and recheck performance and
surface finish.
IMPORTANT! Do not pull the recoil starter cord to the
end of its travel as it may cause damage to the engine
or injury to the operator. When the engine starts, recoil
the cord slowly. Do not allow the cord to snap back to its
start position.
EMERGENCY SHUTDOWN: Release the “hold to run
lever” on the handle bar and/or switch off the ignition
switch on Honda engine versions.