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Hi - I need a manual for an old McCulloch chain saw EM12A

The chain tension seems ok and it moves freely, but I can't figure out what the spring-loaded black plastic bar is supposed to do - is it a safety brake of some kind? There is also a spring-loaded button above the chain path that might be some kind of obstruction remover-no idea.

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  • McCulloch Master
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Assuming from your description that the black bar is in front of the carry handle , it is a safety bar that you press forward to clutch drive to the chain when it gets jammed or you have finished cutting
pull back to engage the chain
go google and type in --user manual for mcculloch chainsaw model em12a --to get a pdf version to download

Posted on May 09, 2017

  • Bruce
    Bruce May 11, 2017

    Thanks for the response.
    I think I had already figured out how the safety bar on the EM12A chain saw is supposed to work. In addition to tightening a metal loop around the chain drive pulley, it also blocks the power switch from engaging.
    There is an adjustment screw to set the trigger force for the bar, but the user guide might explain how to set the screw.

    I still don't have a clue what the spring-loaded black button above the chain track does. Perhaps a debris remover?

    I had no luck finding such an old manual on line. McCulloch does not support the older models and no one else seems to either. There was one on EBay, but it had already been sold!
    Anyway, the saw appears usable, and hopefully safe!

  • Bill Boyd May 11, 2017

    chainsaws are only as safe as the user using it

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Posted on Jan 02, 2017

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1 Answer

First electric chainsaw. McCulloch MC2040E.PRETTY SURE WE FOLLOWED ASSEMBLY INSTRUSTIONS CORRECTLY BUT CHAIN WONT TURN, SEEMS TO JAM


The chain could be on backwards or too tight. The chain should turn freely by hand (with gloves). If not these, could be an internal issue with the saw.

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Why won't the oil feed to the bar and chain


Good morning Jeremy.

I have a couple of thoughts, and pardon me if any of them might seem way too obvious. Most of them are based on my own wide range of trying to figure out why my old McCulloch wasn't working :-)
  1. Is there oil in the bar/chain oil reservoir? This is the easiest one to fix, fortunately, by adding oil.
  2. Is the oil outlet to the chain/bar clogged? Will likely require some disassembly to get there. The rear gear/drive area is a natural spot for wood chips and sawdust to clump together, bound with a bit of chain oil. With enough build-up, you'll get both more drag on the drivetrain, and possibly reduced or impeded oil flow. I seem to recall there being a couple of through-holes on my McCulloch where the oil feeds in from the side, and they have been clogged solid at times. This would likely be addressed by removing the chain and blade and giving them, and the junction area, a thorough cleaning. (Remember to properly tension the chain when you re-assemble)
  3. There is an oil pump listed amongst the replacement parts for the saw on the manufacturers site http://www.poulan.com/ddoc/POUI/POUI2010_USen/POUI2010_USen__576754701.pdf It's possible that the oil pump has failed, or the oil pick-up is clogged or disconnected, in which case there will be no oil flow. See items 49-53 in the exploded part diagram.
Those are my primary thoughts. You can also see a soft copy of the manual here Poulan Pro 115327926 Instruction Manual Page 16 to look at other tips on running the saw.

I hope this helps!
D

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How to tension the chain on a mcculloch 2618cav chainsaw?


Slacken off the two 13mm nuts on the cover, leave them finger tight, clean away the saw dust from the front of the saw to expose the adjuster screw, this is in the front of the cover, it will reqiure a flat blade screw driver, screw in clockwise to tighten the chain, when adjusted correctly it should fit snuggley all the way around the bar, with a gloved hand pull the chain around the bar manualy, it should pull freely with very little resistence.

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I cannot find my manual to my 18v cordless chainsaw ccs818. I need directions for putting the chain back on. I would like to download a copy of the manual.


Your manual can be found here:

http://www.blackanddecker.com/Manuals.aspx with pop-ups enabled then enter your model number
or
http://www.dewaltservicenet.com/documents/English/Instruction%20Manual/90560838,CCS818.pdf

See the instructions for replacing the chain on page 11. It makes reference to the figures on page 6 so that you know exactly what to remove.

Basically... loosen the bar allen screws. Remove the sprocket cover. Loosen the bar retaining bolts. Use a flat bladed screwdriver on the bar / chain tension screw to shorten the bar enough to install the chain. Then adjust the chain tensioner so that there is just a little slack in the chain at the bottom of bar between the drive sprocket and the bar. Tighten the bar retaining bolts install the cover / tighten all cover fasteners. (see details D and E page 6 of the 2nd link above.)

The steps below are copied from the manual.... I can not undo the formatting and can not post the figures here due to size restrictions..

Thanks for choosing FixYa,
Kelly

Replacing the Saw Chain

CAUTION: Sharp chain. Always wear protective gloves when

handling the chain. The chain is sharp and can cut you when it is

not running.

WARNING: Sharp moving chain. To prevent accidental

operation, insure that battery is disconnected from the tool

before performing the following operations. Failure to do this

could result in serious personal injury.

• Place the saw on a firm surface. Rotate the two allen head screws

(11) counterclockwise with the wrench (13) provided as shown in

figure E.

• To remove the saw chain (9), rotate the tension adjustment screw

(23) in the front of the housing using the flat screwdriver end of the

wrench (13) as shown in figure F. Turning the screw

counterclockwise allows the guide bar to recede and reduces the

tension on the chain so that it may be removed.

• Remove sprocket cover (10) and allen head screws (11).

• Lift the worn saw chain (9) out of the groove in the guide bar (8).

• Place new chain in groove of guide bar making sure saw teeth are

facing correct direction by matching arrow on chain with graphic on

housing shown in figure G.

• Place the saw chain and guide bar assembly around the sprocket

(19). Check to make sure that the slot (20) in the guide bar (8) is

over the two location pins (21) shown in figure E and that the hole

below the slot is located over the adjustment pin (22).

• Replace sprocket cover (10) and thread allen head screws (11) in

with wrench until snug, then back wrench off one full turn.

• Pull bar nose up and keep it up as you adjust tension.

• Rotate the tension adjustment screw (23) in the front of the housing

clockwise to increase the chain tension as in Figure F.

Follow instructions in "Adjusting Chain Tension" section.

• While still holding the bar nose up, securely tighten the rear allen

screw (11) first, then tighten the front allen screw.

• When the chain is new check the tension frequently (after

disconnecting battery) during the first 2 hours of use as a new chain

stretches slightly.

Adjusting Chain Tension

CAUTION: Sharp chain. Always wear protective gloves when

handling the chain. The chain is sharp and can cut you when it is

not running.

WARNING: Sharp moving chain. To prevent accidental

operation, insure that battery is disconnected from the tool

before performing the following operations. Failure to do this

could result in serious personal injury.

• With the saw still on a firm surface check the chain tension. The
tension is correct when the chain snaps back after being pulled

1/8 inch (3mm) away from the guide bar (8) with light force from the

middle finger and thumb as shown in figure H. There should be no

"sag" between the guide bar and the chain on the underside as

shown in figure I.

• To adjust saw chain tension, loosen the allen head screws (11).

• Rotate the tension adjustment screw (23) in the front of the housing

using the flat screwdriver end of the wrench (13) as shown in

figure F.

• Do not over-tension the chain as this will lead to excessive wear

and will reduce the life of the bar and chain. Overtensioning also

reduces the amount of cuts you will get per battery charge.

• Once chain tension is correct, tighten allen head screws (11).

• When the chain is new check the tension frequently (after

disconnecting battery) during the first 2 hours of use as a new chain
stretches slightly.

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1 Answer

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1 Answer

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