Troy-Bilt Wide-Cut 753B Operator's Manual page 25

Section 5: Maintenance
_ eforeinspecting, cleaning orservicing t hemachine, shutoffengine, w aitformoving parts tostop,disconnect spank
plug wireandmove wireaway from spank p lug.Remove ignition key(electric s tartmodels).
Failure t ofollow these instructions canresult i nseriouspersonal injur/orproperty d amage.
i I
I
Y I
Figure5-15: Transmission neutral(N) adjustment,
MOWER BLADES
Mowerbladesare sharp.
• When working near blades, wear
heavyleather glovesor wrap blades in
thick rags to protectyourselffrom the
sharpedges.
• Wear eye protection when sharpening
blades.
Examinemower bladesbeforeoperation.
Forefficient mowing, cutting edgesof
bladesshould alwaysbe kept sharp.
Checkfor bladewear or damage. See
Figure5-16. Replace a severelyworn or
damagedblade with a new one.
To Inspect Blades:
1. Stopengine, waitfor all parts to
stopmoving,and disconnect s park
plug wire.
2. Tip mower on rear wheels by follow-
ing instructions"Tipping Mower For
Service"in this Sectionof Manual.
To RemoveBlades:
Removebolt (Figure5-18) and
washer(s). Removemower blade.
To SharpenBlades:
Grind or file the same amountfrom each
bladeend to maintain blade balance. An
unbalancedmower blade producesex-
cessivevibration and may damagespin-
dle bearings.Sharpencutting edge
straight across, parallelto rear edgeof
mower blade.See Figure5-16. After
sharpening,blade balancemust be
checked.
IMPORTANT: P ROFESSIONAL SHARP-
ENINGSERVICES ORYOURAUTHO-
RIZEDDEALER AREEQUIPPED TO
SHARPEN MOWERBLADESSAFELY.
To Install Blades:
Bladesmust be installed perpendicular
to eachother (see Figure5-17).
Install mower bladeas shown in Figure
5-18 with flat side down. Install washer
on bolt. Tighten bolts to a torque value
of 35 ft. Ibs. (47 Nm).
NOTE: If top bolt is removed,reinstall
using LOCTITE #242 thread sealant.
NewBlade
Worn Blade
Replaceff separation
begins to form.
SharpenedBlade
SharOn blade cutting edge sb_ight
across, parallel to bladetrailing edge
Figure 5-16:Blade Inspection
t
s _
Figure5-17
Torqueto
35 Ft. Lbs.
er Blade
I
_:=Washer
Bolt I_-.<--- Torqueto
35 Ft. Lbs.
Figure5-18: Blade spindle.
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