Attach Intermediate Tube And Concentrator Nozzle; Adjust Back Pack Harness And Control Handle; Fuel And Lubrication; Fuel - McCulloch MB2500BP Mode D'emploi

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4-3. ATTACH INTERMEDIATE TUBE AND
CONCENTRATOR NOZZLE
Connect the intermediate tube (H) and concentrator noz-
zle (I) or 56mm nozzle (J) (you can only use I nozzle at
time). Push the tubes together and turn them clockwise
so that they lock together (Fig. 4-3A). Use concentrator
nozzle when you need more airflow in tight places: flower
beds, under decks, etc.
B
D

5-1. FUEL

Use regular grade unleaded gasoline mixed with Genuine
Factory Parts 40:1 custom 2-cycle engine oil for best
results. Use mixing ratios in Section 5-3.
Never use straight gasoline in your unit. This will
cause permanent engine damage and void the man-
ufacturer's warranty for that product. Never use a fuel mix-
ture that has been stored for over 90 days.
If 2-cycle lubricant other than Genuine Factory Parts
Custom 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 recom-
mended mixing ratio of 100:1. If insufficient lubrication is
the cause of engine damage, it voids the manufacturer's
engine warranty.

5-2. MIXING FUEL

Add oil to an approved fuel container followed by the gaso-
line to allow incoming gasoline to mix with oil. Shake con-
tainer to ensure thorough mix.
Lack of lubrication voids engine warranty. Gasoline
and oil must be mixed at 40:1.
7
4 - ASSEMBLY INSTRUCTIONS
I
H
40mm
56mm
J
4-3A

5 - FUEL AND LUBRICATION

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4-4. ADJUST BACK PACK HARNESS AND
CONTROL HANDLE
1. Place blower on your back by slipping arms through
the shoulder straps as if you were putting on a jacket
(Figure 4-4A).
2. Adjust backpack harness and control handle.
3. Once adjustments have been made, to the straps for
user comfort, remove the blower from your back and
place on level ground in an upright position.

5-3. FUEL MIXING TABLE

5-4. 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 satisfactorily on any gasoline intended for automo-
tive use including oxygenated gasolines.

5-5. FUEL AND LUBRICATION SYMBOLS

4-4A
Gasoline and Oil
Mix 40:1