Black Max BM25TEC, Operator'S Manual

Page: 17 / 36

13 — English
MAINTENANCE
WARNING:
The cutting attachment should never turn at idle. Turn
the idle speed screw counterclockwise to reduce the
idle RPM and stop the cutting attachment, or contact a
service dealer for adjustment and discontinue use until
the repair is made. Serious personal injury could result
from the cutting attachment turning at idle.
HIGH ALTITUDE ENGINE OPERATION
Your engine is configured for operation below 2000 feet
altitude at the factory. Your engine must be re-configured
for operation above 2000 feet altitude. Operating the engine
with the wrong engine configuration at a given altitude may
increase its emissions, decrease fuel efficiency, degrade per-
formance and cause irreversible damage. Engines configured
for high altitude operation cannot be operated in standard
altitude conditions. A qualified service center should ensure
that your engine is properly configured for your location.
INSTALLING LINE IN REEL-EASY
™
STRING
HEAD
See Figures 17 - 18.
Use .095 in./2.4 mm diameter monofilament line.

Stop the engine and disconnect the spark plug wire.

Cut one piece of line approximately 25 ft. in length.

Rotate knob on string head until line on knob aligns with
arrows on top of string head.
 Insert one end of line into eyelet located on either side
of the string head and push until line comes out through
eyelet on the other side. Continue to push line through
the string head until the middle section of the line is inside
the string head and line outside the string head is evenly
divided on each side.

While holding the string head in one hand with your other
hand, rotate the knob clockwise on the string head to wind
the line. Wind the line until approximately 8 in. remains
protruding from the string head.
INSTALLING REEL-EASY
™
STRING HEAD
See Figures 19 - 20.

Stop the engine and disconnect the spark plug wire.

Open the REEL-EASY
™
string head by depressing the
latches on each side. The contents of the string head are
spring loaded, so keep your other hand over the string
head cover while depressing the latches.
 Remove the string head cover, knob, and spool and set
aside.

Place the upper housing on the drive shaft. Make sure
the string head is fully seated.

Install the hex bolt into the opening on the drive shaft
and secure using the hex-shaped opening in the knob
to tighten. Turn counterclockwise to tighten.
NOTE: Only use the knob to tighten the bolt. The use of
other tools may allow overtightening of the bolt, which
could damage the string head.

If removed, replace the spring into the string head and
push down to seat.

Reinstall the spool. The spool should be placed so “This
side out for straight shaft” is visible.

Replace the knob in the spool.

Replace the string head cover, aligning latches with
openings in the string head. Press cover and string head
together until both latches snap into openings securely.

Install line as described in the operation section of this
manual.
REPLACING THE EDGER BLADE
See Figures 21 - 23.
Replace blades when worn down to indicator hole on blade.
Use replacement blade model number AC04215.

Stop the engine and disconnect the spark plug wire.

Align the slot in the flange washer and gear case with the
slot in the flange; place the holding pin through all three
slots to secure in place.
 Using a 1/2 in. socket wrench, turn the blade nut clock-
wise to loosen.

Remove the old blade from the edger shaft.
 Clean debris from the edger shaft and flange washers.

Center the new blade on the flange washer, making sure
the blade sits flat.

Install the cupped washer with the hole off of the blade
surface.

Install the blade nut onto the edger shaft.

Using a 1/2 inch socket wrench, turn the blade nut coun-
terclockwise onto the edger shaft and tighten securely.


This replacement part is available from the place of pur-
chase, or by calling customer service.
NOTE: Always make sure the blade is correctly installed
and securely fastened before each use.
ATTACHING THE STORAGE HANGER
See Figure 24.
There are two ways to hang the attachment for storage.

To use the hanger cap, push in the button and place the
hanger cap over the end of the attachment shaft. Slightly
rotate the cap from side to side until the button locks into
place.
 The secondary hole in the attachment shaft can be used
for hanging purposes as well.