Sandri Garden SG 925/30 CS Manual De Instrucciones página 39

PETROL CHAIN SAW FOR TREE SERVICE USER MANUAL
Always hold the chain saw with both hands
(wherever possible).
- The chain brake can also be manually inserted
by pushing it forward.
- To release the brake, pull the lever towards
the handles (fig.37).
Fig. 37
- Before starting any cutting operation, manu-
ally check that the lever clicks into the forward
and backward position.
Check its operation as follows:
- manually apply the brake (fig.30);
- start the engine;
- push the throttle lever all the way for a few sec-
onds (fig.36 item 2);
- the chain must not move on the guide bar.
If the lever does not click into po-
sition, if it becomes harder to op-
erate the lever and if the chain moves along
the guide bar, do not use the chain saw.
Contact an approved service centre.
- Periodically take off the chain brake cover (fig.1
item 19) to remove shavings and sawdust.
Do not attempt to carry out repair
or alteration work.
8.10 CHAIN
MAINTENANCE AND SHARPENING
- If the chain is correctly sharpened, using the
chain saw will be effortless, a better cutting per-
formance will be achieved, and no excessive
wear and tear of the mechanical parts and of
the guide bar will occur.
- If the chain is under-lubricated, increase the oil
flow by turning the oil pump adjusting screw an-
ticlockwise (fig.19).
STOP
STALLING THE GUIDE BAR AND CHAIN".
- After sharpening, slacken the chain by follow-
ing the installation instructions.
- During the sharpening operation, lock the chain
in position by applying the brake.
- Use a round file (specially designed for chains)
with a 5/32" (4.0 mm) diameter, fig.20 item 1.
Check the sharpening angles as shown in (fig.20
items 2-3).
- Sharpen the chain by filing it from the inside to
the outside (fig.20 item 5) all the teeth on one
side, then all the teeth on the opposite side.
- Position the file so that it overhangs by around
1mm (fig.20 item4) over the level where the
cutters are located.
CHAIN REPLACEMENT
- If the chain must be replaced, a genuine part
must be used or, in any case, a chain with the
same features (low kickback) and with a safety
link (fig.38).
See the dimensions in the TECHNICAL DATA
table.
- Before sharpening, the chain must
b e t a u t b y m e a n s o f t h e c h a i n
tensioner (fig.10) see chapter "IN-
39