McCulloch MXC1640D MXC1640DK MXC1640DH MXC1840D MXC1840DK MXC1840DH Chainsaw Owners Manual

5
- OPERATING INSTRUCTIONS
6 - GENERAL CUTTING INSTRUCTIONS
5-3.
RE-STARTING A WARM ENGINE
5.   Squeeze the  throttle trigger to 1/3  throttle, then imme-
6-1.FELLING
FELLING CUT:
diately activate the CHAIN BRAKE
5A).
®
lever (C) (Figure 5-
Felling is the term for cutting down a tree. Small trees up to
6-7 inches (15-18cm) in diameter are usually cut in a single
cut. Larger trees require  notch cuts. Notch cuts  determine
the direction the tree will fall.
FELLING A TREE:
WARNING
A retreat path  (A) should be  planned and cleared as  nec-
essary  before  cuts  are started.  The  retreat  path  should
extend back and diagonally to the rear of the expected line
of fall, as illustrated in Figure  6-1A.
CAUTION
1.   Use wooden  or plastic  wedges (G) to  prevent binding
the  bar or  chain  (H) in  the  cut. Wedges also  control
felling (Figure 6-1C).
2.   When diameter  of wood  being cut  is greater than  the
bar length, make 2 cuts as  shown (Figure 6-1D).
WARNING
As the  felling cut gets  close to  the hinge, the  tree should
begin to fall. When tree begins to fall, remove saw from cut,
stop  engine, put  chain  saw down,  and  leave area  along
retreat path (Figure 6-1A).
1.
2.
3.
Make sure the on/off switch is  in the “I” position.
Depress the primer bulb 10 times.
Set the throttle latch. Latch throttle advance: depress
latch and hold squeeze throttle trigger  release trigger
and then the latch.
WARNING
Activate the CHAIN BRAKE®  slowly and deliberately. Keep
the chain from  touching anything; don’t let  the saw tip for-
ward.
6.   Chain should stop  abruptly. When it does, immediately
release the throttle trigger.
WARNING
4.
5.
6.
Pull the starter rope rapidly  4 times. The engine
should start.
Release the throttle latch. The throttle latch will be
released while you press the trigger.
If the engine still can not  start, follow the step as “To
start engine” section in this user  manual.
If chain does not stop, turn engine off  and take your unit to
the nearest Authorized Service Center  for service.
5-4.
TO STOP ENGINE
7.   If  CHAIN BRAKE
®
functions properly,  turn the  engine
If felling  a tree on sloping  ground, the chain  saw operator
should keep on the  uphill side of the terrain,  as the tree is
likely to roll or slide downhill  after it is felled.
NOTE: Direction of fall (B) is controlled by the notching cut.
Before any  cuts are made,  consider the location  of larger
branches and natural lean of the tree to determine the way
the tree will fall.
off  and  return   the  CHAIN  BRAKE    to  the  DISEN-
®
GAGED position.
1.
Release  trigger  and   allow  engine  to  return   to  idle
speed.
B
2.
Press STOP switch down to stop  engine Figure 5-4A.
NOTE:  For  emergency stopping,  simply  activate  CHAIN
BRAKE
A
C
A
B
®
and move STOP switch down.
WARNING
Do not cut down a tree  during high or changing winds or if
there is a danger to property. Consult a tree  professional.
Do not cut down a tree if there is a  danger of striking utility
wires; notify the utility company before making any  cuts.
6-1A
GENERAL GUIDELINES FOR FELLING
TREES:
5-5A
Normally  felling  consists   of  2  main  cutting   operations,
notching (C) and making the felling  cut (D).
Start making the upper notch cut (C) on the side of the tree
facing the felling direction (E). Be  sure you don t make the
lower cut too deep into the  trunk.
The notch (C) should be deep enough to create a hinge (F)
of sufficient width  and strength. The notch should be  wide
enough to direct the fall of  the tree for as long as possible.
WARNING
Never walk in front of a  tree that has been notched.
Make the felling cut (D) from  the other side of the tree and
1.5 - 2.0  inches (3-5 cm) above  the edge of the  notch (C)
(Figure 6-1B).
Never  saw completely  through the  trunk. Always  leave  a
hinge. The hinge guides the tree. If the  trunk is completely
cut through, control over the felling  direction is lost.
Insert a wedge or felling lever in the cut well before the tree
becomes unstable and starts to move. This will prevent the
guide bar  from binding  in  the felling  cut if  you have  mis-
judged the falling direction. Make sure no  bystanders have
entered the range of the falling tree before you push it over.
5-6.SAW
Adequate  lubrication of  the  saw chain  is  essential  at all
times to minimize friction with the  guide bar.
CHAIN / BAR LUBRICATION
5-4A
Never starve the bar and chain of oil. Running the saw with
too  little oil  will  decrease  cutting efficiency,  shorten  saw
chain life,  cause rapid  dulling of chain,  and cause  exces-
sive wear of bar from overheating. Too little oil is evidenced
by smoke, bar discoloration or pitch  build-up.
NOTE: Saw chain stretches during use, particularly when it
is new, and  it will occasionally be necessary  to adjust and
tighten it. New  chain will  require adjustment after  about 5
minutes of operation.
INERTIA CHAIN BRAKE
®
ACTION :
6-1B
NOTE:  THIS  SAW   IS  EQUIPPED  WITH   AN  INERTIA
CHAIN BRAKE.IF THE SAW KICKS BACK WHILE IN USE,
THE  INERTIA  OF THE  MOVING  SAW WILL  ACTIVATE
THE  BRAKE. A  BRAKE BAND  AROUND THE  CLUTCH
DRUM ACTIVATES AND STOPS THE MOVING CHAIN.
G
H
5-5.CHAIN
Test  the  CHAIN  BRAKE
function.
Perform a CHAIN BRAKE
BRAKE® OPERATIONAL TEST
periodically  to  ensure  proper
test prior to initial cutting, follow-
®
5-7.AUTOMATIC
OILER
6-1C
Your chain saw is equipped with an automatic clutch driven
oiler  system. The  oiler  automatically  delivers  the proper
amount of  oil to  the bar  and chain.  As the  engine speed
increases, so does  the oil flow to the  bar pad. There is no
flow adjustment.  The oil  reservoir will  run out  at  approxi-
mately the same time as the  fuel supply runs out.
®
ing extensive  cutting,  and definitely  following any  CHAIN
®
BRAKE  service.
TEST CHAIN BRAKE® AS FOLLOWS:
1.
2.
3.
Place saw on a clear, firm,  flat surface.
Start engine.
Grasp the rear handle  (A) with your right  hand (Figure
5-5A).
WARNING
Before making  the  final cut,  always recheck  the  area for
bystanders, animals or obstacles.
4.
With  your  left  hand,  hold  the  front   handle  (B)  [not
CHAIN BRAKE  lever  (C)] firmly (Figure 5-5A).
®
6-1D
12
13
Product Specification
CategoriesChainsaw Manuals, McCulloch Chainsaw Manuals
Tags, , , , ,
Model Year2006, 2007, 2008
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- 36 pages
LanguageEnglish
Product BrandMcCulloch. Support Phone for US: Wheeled (Mowers, Tractors, Tillers, Snow Throwers) - 1-800-849-1297
McCulloch Handheld (Chainsaws, Trimmers, Blowers, Edgers) - 1-800-554-6723 All McCulloch Products - 1-800-521-8559, Chainsaw
Document File TypePDF
Publishermcculloch.com
Wikipedia's PageMcCulloch Motors
CopyrightAttribution Non-commercial
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