McCulloch MT3075 - REPLACING CUTTER LINE; AIR FILTER; FUEL CAP; FUEL FILTER; CARBURETOR ADJUSTMENT

16
8 - MAINTENANCE INSTRUCTIONS
8-1. REPLACING CUTTER LINE
1. Turn the knob (A) CLOCKWISE and remove it (Figure
8-1A).
2. Remove the spool (C), and spring (D) from spindle
(E).
3. Remove any remaining cutter line.
4. Fold over a 32' (9.8m) length of .095 or .105" (.24 or
.27cm) cutter line. Place the looped center in one of
the slots (G) of the spool divider (Figure 8-1B).
5. Wind as shown in illustration (Figure 8-1C), keeping
tension, with each half separated by the spool divider.
Wind to within 6" (15cm) of the ends. (Figure 8-1D,
page 32)
6. Lock each end of line into a slot (H) on opposite sides
of the spool (Figure 8-1D).
7. Install the spring (D) over the spindle (E). Insert each
end of the line through an eyelet (J) in the housing (F)
(Figure 8-1E).
8. Lower the spool into the housing (F) while feeding the
line through the eyelets (J). Insure the spring seats
itself into the housing. (Figure 8-1E)
9. Once the spool is in place, apply pressure on the spool
compressing the spring. Pull each end of the line (B)
sharply to unlock the line from the slots (Figure 8-1F).
10. Continue to apply pressure to the spool until the knob
can be threaded COUNTERCLOCKWISE onto the
spindle. Tighten the knob securely by hand only (Figure
8-1G).
11. Trim the excess line to approximately 5" (13cm). This
will minimize load on engine during starting and warm-
up (Figure 8-1H).
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8 - MAINTENANCE INSTRUCTIONS
MAINTENANCE CHECKLIST
EACH USE
HOURS OF
OPERATION
ITEM
ACTION
10
20
SCREWS / NUTS / BOLTS
AIR FILTER
FUEL FILTER
SPARK PLUGO
SPARK ARRESTER SCREEN
FUEL HOSES
BLADE
INSPECT / TIGHTEN
CLEAN OR REPLACE
REPLACE
CLEAN / ADJUST / REPLACE
CLEAN OR REPLACE
INSPECT
*REPLACE AS REQUIRED
*REPLACE AS REQUIRED
INSPECT
✔
✔
✔
✔
✔
✔
✔
*Recommended for maintenence by an authorized service center technician using Genuine Factory replacement parts
A.KNOB
B.CUTTER LINE
C.SPOOL
D.SPRING
E. SPINDLE
F. HOUSING
G.DIVIDER SLOTS
H.SLOTS
J. EYELETS
8-1A
A
B
C
D
E
F
G
H
J
B
8-1B
G
8-1D
8-1E
H
J
E
F
J
D
8-1C
8-1F 8-1G
B
B
8-1H
5"
(13mm)