Maintenance/service, Equipment maintenance, Engine maintenance – Bolens 12207 User Manual

Page 13: Warning

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Note (1) – After first five (5) hours of use.

Note (2) – Clean daily when conditions are extremely

dusty or dirty.

Note (3) – Spark plug may be checked annually or

every 100 operating hours.

EQUIPMENT MAINTENANCE

Transmission Maintenance

The transmission was lubricated with grease at the factory and
it should not require any further lubrication.

However, you should check the lubricant level after the first five
(5) hours of operation and every twenty-five (25) operating
hours thereafter. If needed, use a high-quality, automotive-
grade petroleum-base grease.

To check the transmission:

• Stop the engine, let it cool and disconnect the spark plug wire

before proceeding.

• Place the machine down on its left side so the right end of the

tine shaft points up.

• Remove the right-side tines (see Tine Removal and Installa-

tion in this Section).

• Clean the transmission housing to prevent dirt and debris

from entering the transmission.

• Remove the three threaded plugs (A, B and C, Figure 14) from

the transmission. Lubricant should be visible in the top two
holes (B and C). If so, replace all three plugs. If lubricant is
needed, proceed as follows.

To lubricate the transmission:
Place the nozzle of a standard grease gun firmly against the

rim of the middle hole (B, Figure 14) and add grease until it
begins to seep from the bottom hole (A). Reinstall the plug in
the bottom hole (A). Next apply grease to the top fill hole (C)
until it begins to seep from the middle hole (B). Reinstall the
plugs in the middle (B) and top (C) holes.

Before reinstalling the tines, use a fine grade sandpaper to

clean any rust off the tine shaft. Apply a few drops of oil to
the tine shaft to make future tine removal easier.

Other Lubrication Points

• Handlebar Adjustment Knobs: Spray occasionally with a sili-

cone type lubricant.

• Engine Throttle Lever Cable: Squeeze the lever closed and

spray a lubricant (such as WD40) into the cable area.

• Tine Shaft: After each use, remove the tines, clean the tine shaft

with sandpaper and apply a light coat of oil to the tine shaft.

Hardware

Before each use, check that all hardware is in place and tight-
ened securely.

ENGINE MAINTENANCE

Engine Lubrication

The engine is a two-cycle engine. Lubrication is provided by
mixing two-cycle oil with unleaded regular gasoline as described
in the Assembly Section. Attempting to operate the engine on
gasoline alone will cause the engine to overheat and seize up.

MAINTENANCE/SERVICE

REQUIRED MAINTENANCE SCHEDULE

REQUIRED MAINTENANCE

Before

After

Every Every

End

Each

Each 25

75

of

Use

Use

Hours Hours Season

Check Tightness of Bolts and Nuts

Clean Engine Cooling System

Check Transmission Lubricant (1)

Service Air Filter (2)

Inspect Spark Plug (3)

Clean Machine

Clean Engine Exhaust Ports

(see Factory or authorized Dealer)

Clean Tine Shaft

Figure 14: Transmission lubricant check and fill locations (A,B,C).

A

B

C

13

Before tipping engine or equipment to service transmission,
drain fuel from tank by running engine until fuel tank is
empty.

WARNING

Before inspecting, cleaning or servicing the
machine, shut off engine, let all moving
parts come to a complete stop, disconnect
the spark plug wire and move the wire away
from the spark plug.
Failure to follow these instructions can result
in personal injury or property damage.

WARNING

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