Powerplus POW64115 CHAINSAW 37.2CC 406MM EN - Manual (Page 11)

POW64115 EN
Copyright © 2011 VARO P a g e | 11 www.varo.com
Caution: if saw chain is too loose or too tight, the sprocket, bar, chain, and
crankshaft bearings will wear more rapidly. Study fig.6 for information
concerning correct cold tension (A), correct warm tension (B), and as a
guide for when saw chain needs adjustment (C).
7.3.5 Chain brake mechanical test
Your chain saw is equipped with a chain brake that reduces possibility of injury due to
kickback. The brake is activated if pressure is applied against brake lever when, as in the
event of kickback, operator’s hand strikes the lever. When the brake is actuated, chain
movement stops abruptly.
Warning: the purpose of the chain brake is to reduce the possibility of
injury due to kickback; however, it cannot provide the intended measure of
protection if the saw is operated carelessly. Always test the chain brake
before using your saw and periodically while on the job.
7.3.6 To test chain brake:
fig 7a
 The chain brake is disengaged (chain can move)
when brake lever is pulled back and locked. Be sure
the chain brake latch is in the off position. (fig. 7a)
fig 7b
 The chain brake is engaged (chain is stopped) when
brake lever is in forward position and the chain brake
latch is in the on position. You should not be able to
move chain. (fig. 7b)
Note: the brake lever should snap into both positions. If strong resistance
is felt, or lever does not move into either position, do not use your saw.
Take it immediately to a professional service center for repair.
8 FUEL AND LUBRICATION
8.1 Fuel
Use regular grade unleaded gasoline mixed with 25:1 custom 2-cycle engine oil for best
results. Use mixing ratios in section fuel mixing table below.
Warning: never use straight gasoline in your unit. This will cause
permanent engine damage and void the manufacturer’s warranty for that
product. Never use a fuel mixture that has been stored for over 90 days.
Warning: 2-cycle lubricant must be a premium grade oil for 2-cycle air
cooled engines mixed at a 25:1 ratio. Do not use any 2-cycle oil product
with a recommended mixing ratio of 100:1. If insufficient lubrication is the
cause of engine dama
ge, it voids the manufacturer’s engine warranty.
8.2 Mixing fuel