Maple Valley Power Saws
• Husqvarna K 970 Rescue
• Stihl MS 460 Rescue
Husqvarna K 970 Rescue Saw
•
•
•
•
•
Engine
Horsepower
Max RPM
Weight
Blade
2 Cycle
6.5
9300
~24 lbs
Extractor
(diamond tipped)
• Fuel
Mixed
(50:1)
Husqvarna K 970 Rescue Saw
• Daily Check
– Fuel (minimum ¾)
– Blade guard in good
repair.
– Blade securely attached
to saw.
– Blade shows no signs of
cracks or other defects.
– Saw is ready to start.
Husqvarna K 970 Rescue Saw
• Starting Procedures:
– Hold the saw firmly on
the ground with the
blade clear. (The cutting
blade rotates when the
engine is started)
– Press in the
decompression valve.
Decompression
Valve
Husqvarna K 970 Rescue Saw
• Starting Procedures:
– Make sure the STOP
switch is in the left
position.
– Cold Engine - Pull the
choke out completely.
– Warm Engine – Pull the
choke out and then push
it in again.
Husqvarna K 970 Rescue Saw
• Starting Procedures:
– Press the air purge
repeatedly until fuel fills
the diaphragm (about 6
times).
– Slowly pull the cord until
you feel resistance, now
quickly and powerfully
pull the cord.
Husqvarna K 970 Rescue Saw
• Starting Procedures:
– Cold Engine - After two
or three pulls, press the
choke control back in.
– Push the decompression
valve back in and pull
the starter handle until
the engine starts.
Husqvarna K 970 Rescue Saw
• Starting Procedures:
– When engine starts,
quickly apply full throttle
to automatically
disengage fast idle.
– To stop the saw, move
the STOP switch to the
right.
Husqvarna K 970 Rescue Saw
• Operating Procedures:
– The K12 saw is set up with an “Extractor”
diamond tipped rescue blade.
– http://www.youtube.com/watch?v=dk4KG2ZO6Zs
– It can cut metal, masonry, glass, plastic, tile, and
wood.
– “NEVER” STOP THE SPINNING BLADE BY STICKING
IT INTO SOMETHING TO STOP IT! DOING SO WILL
SHORTEN THE LIFE OF THE BLADE.”
Husqvarna K 970 Rescue Saw
• Operating Procedures:
– Keep RPM’s high so blade doesn’t bog down in the
cut.
– If your blade begins to bog down, quickly raise it a bit
from the point of contact and let the RPM’s spin back
up without removing the blade from the cut.
– Try to keep the blade straight and perpendicular to
the cut.
– Some pressure can be applied to increase cut speed.
Husqvarna K 970 Rescue Saw
• Safety and Training with the K12 Saw:
– Full PPE must be worn, including eye protection
and hearing protection.
– Do not carry a running saw up a ladder.
– The blade should not be rotating when the saw is
being carried.
Stihl MS 460 Rescue Saw
•
•
•
•
•
•
Engine
2 Cycle
Horsepower
6.0
Guide Bar
20”
Weight
~15 lbs
Chain
Terminator
Fuel
Mixed
(50:1)
Stihl MS 460 Rescue Saw
• Daily Check
– Fuel (minimum ¾)
– Bar Oil (minimum ¾)
– Chain has less than four
cracked or other
defective teeth.
– Chain tension is good.
– Saw is ready to start.
Stihl MS 460 Rescue Saw
• Starting Procedures:
– Hold the saw firmly on
the ground with the bar
clear.
– Set the chain brake.
– Press down the trigger
lockout and pull throttle
trigger at the same time.
Stihl MS 460 Rescue Saw
• Starting Procedures:
– While holding the
throttle in that position
set the master control
lever to
– DO NOT force the master
control lever down
without squeezing the
throttle – it could break
the linkage.
Stihl MS 460 Rescue Saw
• Starting Procedures:
– Slowly pull the cord until
you feel it engage – then
give it a brisk strong pull.
– After a few pulls move
the master control lever
to
Stihl MS 460 Rescue Saw
• Starting Procedures:
– Continue cranking…
– As soon as the engine
runs, immediately blip
the throttle trigger.
– The master control lever
will move to
position
and the engine will settle
down to idling speed.
Stihl MS 460 Rescue Saw
• Starting Procedures:
– Always disengage the
chain brake before
accelerating the engine.
– To stop the engine move
the master control lever
to
Stihl MS 460 Rescue Saw
• Operating Procedures:
– The rescue chain saw is
set up with a Terminator
rescue chain. Identified
by the double raker.
– The Terminator chain is
for ventilation, garage
doors, and other cutting
at structure fires.
– This chain is NOT for
cutting tree limbs.
Stihl MS 460 Rescue Saw
• Operating Procedures:
– We also carry a regular
wood cutting chain.
Identified by the single
raker.
– The wood chain is for
cutting trees and limbs.
Stihl MS 460 Rescue Saw
• The wood chain can be
found in the engine’s
tool box.
Stihl MS 460 Rescue Saw
• Safety and Training with the Rescue Saw:
– Full PPE must be worn, including eye protection
and hearing protection.
– Chaps shall be worn during training and nonemergency incidents (trees and limbs in roadway).
– The chain brake should be engaged when the saw
is being carried.