Maintenance; Tightening And Replacing The Transmission Belt - Sima COBRA-40 Manual De Instrucciones

Keep members of the public and unauthorized personnel at a safe distance.
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Remove any wear clothing that could be caught in the equipments´ moving parts.
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Always switch off the motor before transporting, moving it around the site or servicing it.
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Before starting the motor, check that the blade does not touch the surface being cut.
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Make sure the work areas are adequately ventilated as exhaust fumes produced by the engine are highly
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toxic.
Take special care not to touch the exhaust pipe while the saw is operating as it can burn. Let it cool down for
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a while after stopping the engine.
Keep in mind the safety recommendations of the engine and consult the engine manual for detailed guidance.
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Do not use water under pressure to clean electrical circuits or elements.
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At the end of each working day, turn the machine off and unplug it from electricity.
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SIMA, S.A. will not be held liable for consequential or other damages in connection with the floor saw COBRA or by
reason of or the inability to use the machine for any purpose.

6. MAINTENANCE

Maintenance must be performed by operators that fully understand how to use the machine safely.
Any maintenance must be carried out while the engine is off.
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Always bear in mind the safety recommendations described in this manual as well as those of the engine
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manual.
Lubricate every 80 hours the brackets with bearings, depth screw, support bracket and cutting depth
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screw.
Check the engine oil level and always set the floor saw on a plane ground. The engines assembled onto the
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COBRA 40 are equipped with an alarm that shows low oil level. When the latter is too low, the engine will not
start. So, fill up as necessary.
Use oil type SAE 15W- 40.
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Clean frequently the saw and if you observe any anomaly or signs of damage, consult your technicians.
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Do not forget to remove the tools used off the machine.
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It is forbidden to modify any components, pieces, elements or characteristics of the machine. SIMA, S.A. will
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not be held liable for any consequences due to the non observance of the above recommendations.
Cover the machine with a waterproof cloth.
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6.1 TIGHTENING AND REPLACING THE TRANSMISSION BELT

The transmission belts are elements that cab loosened by the time and frequent usage. Therefore, it
should be checked after some time and then should be adjusted if necessary. Check frequently the belt tension and
place finger pressure on the top of the belt. The belt should deflect around 8 mm.
Normal wearing-out of the transmission belts can also mean that they should be replaced.
To check the belt tension, remove the belt safeguard (P, Fig.8), loosening the screws (T, Fig.8) and adjust
them or replace them.
If the belt tension requires adjustment, adjust the engine's position backwards loosening the nuts (A, Fig.8)
and tighten the screw (R, Fig.8). Once set, tighten again the nuts of the engine (S, Fig.8).
If the belt tension needs replacement, adjust the engine's position forward and loosen the nuts and screw (A.
Fig 8). Then, remove them and replace them. After, adjust again the engine until you reach a correct tension for the
belts. Tighten again the nuts of the engine. (S. Fig 8)
Thereafter, you need to move the engine towards the cube, tightening the tensor S, Fig.8 until the correct
tightening of the belt has been achieved. If necessary, loosen the opposite tensing screw R, Fig.8. Finally tighten back
nuts of the engine.
Whenever you remove the belt guard (P Fig. 8), check the pulley alignment between the engine pulley and
the blade pulley. Take a ruler, place it and check that there is no room left between.
If the alignment is incorrect, adjust the engine's position until the pulley is aligned and belt tension is correct.
Finally, replace the belt guard (P, Fig.8) and fix it with its screws (T, Fig.8.)
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ENGLISH