HomeMy WebLinkAbout306.029 - Partner K950 Chain Saw
TRAINING AND EQUIPMENT MANUAL
RESCUE EQUIPMENT
306.029 PARTNER K950 CHAINSAW
EFFECTIVE: AUGUST 2010
Current Revision Date: 8/8/19 Next Revision Date: 8/8/24
Author’s Name/Rank: Conor Schwarm, Engineer Review Level: 1
Administrative Support:
Leslie Oulashian,
Management Analyst II
PURPOSE
The purpose of this policy is to outline the care and use of the Partner K950
Concrete Cutting Chainsaw for members of the Fresno Fire Department (FFD or
Department).
APPLICATION
The Partner K950 Chainsaw is designed to cut concrete up to a depth of 15 inches.
OPERATIONAL POLICY
This section intentionally left blank.
Section 306.029
Page 1 of 13
OPERATIONAL GUIDELINE
1. General Safety Rules:
a. Operator and others in the work area must wear safety
glasses and ear protection.
PROCESS
1. Cold Start:
a. Slide the stop switch (red) to the left, toward the power unit.
(See Figure 1.)
b. Pull the choke lever (blue) out.
Figure 1
Section 306.029
Page 2 of 13
c. Hold the throttle control lever in; press the starter throttle catch
in (white). Release the throttle control and the throttle will
remain locked in the half-throttle position. The catch is
released when the throttle control is pressed in all the way.
(See Figure 2.)
d. Press in the decompression valve (blue) to reduce the
pressure in the cylinder for an easier start. The
decompression valve should always be used when starting.
The valve will automatically return to its original position.
(See Figure 3.)
Figure 2
Figure 3
Section 306.029
Page 3 of 13
2. Warm Start:
a. Use the same procedure as for cold start, but without the
choke lever (blue). (See Figure 4.)
Figure 4
3. Wet Cutting:
a. Attach water hose to water quick connection (orange). (See
Figure 5.)
b. Use water adjustment valve (blue) until adequate flow is
achieved.
Note: The diamond blade must always be run with water.
Dry cutting causes immediate overheating. The flow
of water pushes particles away from the bar and the
drive links.
Figure 4
Section 306.029
Page 4 of 13
4. Suggested W ater Pressure:
Minimum; 2.5 Bar (37 psi)
Maximum: 11 Bar (160 psi)
Recommended: 5 Bar (73 psi)
5. Start:
a. Hold front handle with left hand and right foot on lower section
of rear handle.
b. Grip starter with right hand. Slowly pull starter cord until
resistance is felt; then quickly pull.
c. When engine starts, quickly apply full throttle and the starter
throttle catch will automatically disengage.
d. Push choke lever in. (See Figure 6.)
Figure 6
Section 306.029
Page 5 of 13
6. Stop:
a. The engine is stopped by sliding the stop switch (red) to the
right. (See Figure 7.)
7. Tensioning the Chain:
a. Un-tensioned chain.
b. Start with opening the adjust screw.
c. Pull the handle backwards. (See Figures 8 and 9.)
Figure 5
Figure 8 Figure 9
Section 306.029
Page 6 of 13
d. Continue to move the handle downwards until the chain starts
to tension. (See Figure 10.)
e. Hold the bar upwards as you move the handle forward. (See
Figure 11.)
f. Tighten the adjust screw. (See Figure 12.)
Figure 10
Figure 6
Figure 12
Section 306.029
Page 7 of 13
g. Close the adjust screw cover. (See Figure 13.)
8. Chain Tension:
a. Is significantly lower than the Department’s vent saws.
b. The lower chain tension reduces the friction between the bar
and the chain.
c. Chain slack should measure .2 inch to .5 inch at the middle of
the bar. (See Figure 14.)
9. Changing the Chain and Rim:
a. Press the spring down into the chain tensioner handle and turn
the nut counter-clockwise.
b. Unscrew the adjusting nut. (See Figure 15 and 16.)
Figure 13
Figure 14
Section 306.029
Page 8 of 13
c. Remove the cover. (See Figure 17.)
d. Remove the bar and chain. (See Figure 18.)
Figure 16 Figure 15
Figure 17
Figure 18
Section 306.029
Page 9 of 13
e. Remove the spring holding the two “half-moons” using a
screwdriver. (See Figure 19.)
f. Remove the “half-moons”, the cup, and rim. (See Figure 20.)
g. Remove the drive wheel. (See Figure 21.)
h. Assembly takes place in the reverse order.
Figure 19
Figure 20
Figure 21
Section 306.029
Page 10 of 13
10. Changing the Clamping Force of the Bar:
a. Check the handle for tightness. (See Figure 22.)
b. Move the lever to its rear, lower position. Press in the lever’s
spring and turn the adjusting nut clockwise. (See Figure 23.)
c. After adjustment, the chain tensioner handle should point
nearly straight up when it is moved clockwise as far as
possible. (See Figure 24.)
Figure 22
Figure 23
Figure 24
Section 306.029
Page 11 of 13
11. Daily Maintenance:
a. Check fluid levels. (Fuel is 1:50 two-stroke/gasoline mix.)
b. Check chain condition and tension.
c. Check condition of bar.
d. Ensure all nuts and bolts are tight and nothing appears
damaged.
e. Check condition of pull cord.
f. Ensure chain is properly lubricated for storage.
12. Weekly Maintenance:
a. Perform daily checks.
b. Check the filter(s). Clean, as needed, to ensure proper
cooling and operation.
c. Start and run the chain saw until warm (with the water source
connected.)
d. Check all cables and connections.
e. Refuel as needed.
INFORMATION
1. Specifications:
Engine: Air Cooled, Two Cycle
Displacement: 94 cc
Power: 6.2 Horsepower
Weight (without Bar and Chain): 20.7 Lbs.
Bar Length: 14 Inches
Cutting Depth: 15 Inches
Section 306.029
Page 12 of 13
DEFINITIONS
This section intentionally left blank.
CROSS-REFERENCES
No cross-references recognized.
Section 306.029
Page 13 of 13