McCulloch EBC1640BK-CA, MCC1840BC, MCC1840B-CA manual Fuel and Lubrication Operating Instructions

4 - FUEL AND LUBRICATION

5 - OPERATING INSTRUCTIONS

4-1. FUEL

Use regular grade unleaded gasoline mixed with Genuine McCulloch 40:1 2-cycle engine oil for best results. Use mix- ing ratios in Section 4-3.

Never use straight gasoline in your unit. This will cause permanent engine damage and void the manufactur- er’s warranty for that product. Never use a fuel mixture that

has been stored for over 90 days.

If 2-cycle lubricant other than Genuine McCulloch Lubricant is to be used, it must be a premium grade oil for 2-cycle air cooled engines mixed at a 40:1 ratio. Do not

use any 2-cycle oil product with a recommended mixing ratio of 100:1. If insufficient lubrication is the cause of engine damage, it voids the manufacturer’s engine warran-

FUEL MIXING TABLE

GASOLINE		McCulloch 40:1 Ratio
		Lubricant
1	U.S. Gal.	3.2 oz.	95ml (cc)
5	Liters	4.3 oz.	125ml (cc)
1 lmp. Gal.		4.3 oz.	125ml (cc)
	Mixing	40 Parts	Gasoline to
	Procedure	1 Part Lubricant

1ml=1cc

5-1. ENGINE PRE-START CHECKS

WARNING

Never start or operate the saw unless the bar and chain are properly installed.

1.Fill the fuel tank (A) with correct fuel mixture (Figure 5-1A).

2.Fill the oil tank (B) with correct chain and bar oil (Figure 5-1A).

3.Be certain the CHAIN BRAKE® is disengaged (C) before starting unit (Figure 5-1A).

NOTE: See page 9 Fig. 3-5A & 3-5B.

After warm up - See the User's Manual section 5-2, step 7

-If unit does not Idle after restarting 2 times, follow these steps to adjust idle.

1.Idle adjustment access (G). (Figure 5-2H)

2.Using a Phillips or slotted screwdriver - turn screw 1/4 to 1/2 turn clockwise (to the right). Unit should then idle properly. (Figure 5-2H)

NOTE: If chain turns while idling - turn screw back to the left until chain stops and unit continues to idle.

ty for that occurrence.

4-2. MIXING FUEL

Mix fuel with Genuine McCulloch brand 2 cycle oil in an approved container. Use mixing table for correct ratio of fuel to oil. Shake container to ensure thorough mix.

Lack of lubrication voids engine warranty.

4-3.FUEL AND LUBRICATION SYMBOLS

Gasoline and Oil

Mix 40:1

4-4. RECOMMENDED FUELS

Some conventional gasolines are being blended with oxy- genates such as alcohol or an ether compound to meet clean air standards. Your McCulloch engine is designed to operate on any gasoline intended for automotive use including oxygenated gasolines.

4-5. CHAIN AND BAR LUBRICATION

Always refill the chain oil tank each time the fuel tank is refilled. We recommend using Genuine McCulloch Chain, Bar and Sprocket Oil, which contains additives to reduce friction and wear and to assist in the prevention of pitch for- mation on the bar and chain.

C

A

B

5-1A

5-2. TO START ENGINE

1.Press red STOP switch to the “I” ON position (Fig. 5- 2A).

2.Pull out the choke (A) to the point where it latches in place. (Fig. 5-2B)

3.Push the primer bulb (B) 10 times. (Fig. 5-2C)

4.Latch throttle advance: depress latch and hold (C) squeeze throttle trigger (D) release trigger and then the latch. (Fig. 5-2D)

5.Place the saw on a firm and level surface. Hold the saw securely with your foot as illustrated. Pull sharply on the starter 4 times. Watch the chain in case it runs. (Fig. 5-2E)

5-2A

B

A

5-2B5-2C

C

D

5-2D5-2E

Oil Only

10

NOTE: Easy Start power assist starting significantly reduces the pulling effort. Pull the starter cord slowly to about 3 1/2 feet, the power assist will turn over the engine with little resistence from the engine.

6.Push in the choke (E) as far it will go. (Fig. 5-2F)

7.Hold the saw securely and tug sharply on the starter 4 times. The engine should start.

8.Let the engine run for 10 seconds to warm up. Press the trigger (F) and put it into idle. (Fig. 5-2G)

9.If the engine does not start up, repeat the above steps.

IMPORTANT IDLING INFORMATION

In some cases due to operating conditions (altitude, tem- perature etc.) your chain saw may need a slight adjustment to the idle speed.

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A	F
5-2F	5-2G
	G

5-2F5-2G