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3 - ASSEMBLY INSTRUCTIONS
3-3. ATTACH INTERMEDIATE TUBE AND CON-
CENTRATOR 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. 3-3A). Use concentrator noz-
zle when you need more airflow in tight places: flower
beds, under decks, etc.
I
B
D
H
1-9/16" (40mm)
2-3/16" (56mm)
J
3-3A
3-4. 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 3-4A).
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.
3-4A
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4 - FUEL AND LUBRICATION
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
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 recommend-
ed mixing ratio of 100:1. If insufficient lubrication is the
cause of engine damage, it voids the manufacturer's
engine warranty 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
FUEL MIXING TABLE
McCulloch 40:1 Ratio
GASOLINE
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
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.
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