OPERATION
Petrol engine starting procedure
Check that there is sufficient fuel in
the fuel tank. (See manufactures
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.
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.
Machines fitted with an
electric motor
IMPORTANT:
Pull back on the handle bars to
retract the machines stand, pull the
„hold to run‟ lever against the handle
bar and press the green start button
on the switch box, then gently lower
the disc onto the surface being
worked.
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.
Machine Operation
(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.
Shut Down
On electric powered machines,
simply release the “hold to run”
lever.
On engine powered machines, move
the engine‟s throttle lever to the slow
speed position. (This avoids the
engine becoming washed internally
by neat fuel if switched off from high
engine revolutions.)
Release the „hold to run‟ lever and
on Honda engines, switch off the
engine's start switch.
Important:
Close the engine fuel tap.
On both electric and engine powered
machines, use the stand to raise the
disc off the ground to prevent any
built up heat deforming the rubber
coupling if it is left under load whilst
hot and stationary. The machine
can be stored whilst on it‟s stand.
After the engine or motor has
completely cooled, clean off any
concrete dust from external
components and remove any heavy
build up of concrete dust from inside
the front dust skirt, (See start of
“Grinding Block Replacement”
section for safe method of gaining
access to inside of front dust skirt).
Take care when using hoses or
pressure washers and clean within
the dust skirt area only.
Do not to allow water to be directed
at or splashed onto the engine,
electric motor or any electrical
components. Once clean and dry,
cover the machine to protect it and
store the grinder in a dry place.
Machine Storage
Long period storage: over
3months
Clean outside of machine, inspect
the grinding blocks for wear; replace
any worn parts as required.
Remove any build up of material
from inside of grinding disc area
following step in start of “Grinding
Block Replacement” Section .
Cover the machine to protect it.
Store the machine in a dry place.
Be sure to check security of wooden
wedges after any lay up period.
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.
