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Section 4 - ADJUSTMENTS & REPAIR
_IL WARNING _,
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool. Wear heavy leather gloves when
handling or working around cutting blades. Blades
are extremely sharp and can cause severe injury.
4.1 MOWER BLADE REPLACEMENT
4.1.1. STANDARD BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
or damage. See Figure 4.1.
NEW"_
BLADE_ //WEAR LIMIT
F (NOTCH STARTS)
DANGEROUS
_,.-_ I _ CONDITION!
-_.,.-_j./ DONOTUSEON
MOWER! REPLACE
WITH NEW BLADE,
FIGURE 4.1
4.1.2. NINJA BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
or damage. See Figure 4.2.
NEWBLADE WEARL,M'T:C_CKS
OR NOTCHES BEGIN
i APPEAR ON TIPI
EROUS!
_,_ '\_ DO NOTUSE A BLADE IN
ONDmON!
DANGEROUS! .....
DO NOT USE A BLADE IN
|
2. Replace the blade if it is badly chipped, bent,
noticeably out of balance or has cracks or notch in
either tip. See Figure 4.1 & 4.2. Replace with new
blade.
,_ WARNING A I
DO NOT use a cutting blade that shows signs of I
excessive wear or damage. Refer to Section I
"MOWER BLADE REPLACEMENT" for proper blade I
inspection and service procedures. I
4.1.3. BLADE SHARPENING
1. Disconnect spark plug wire and secure end away
from plug.
IMPORTANT: Drain fuel tank before tipping mower.
DO NOT tip machine with carburetor or spark plug down.
Oi from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
2. Tilt mower up on its rear wheels.
3. Remove blade. See Figure 4.3
MAKE SURE THAT I
BLADE HUB IS
I
BLADE SEATED BETWEEN
HUB FLANGES
' i
<Cono°v°S,.° /
--cAPscR_w
FIGURE 4.3
(Continued on Next Page)
FIGURE 4.2
14
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