Offset Mowers 33 Trailblazer Attachments, LLC
423-405-5150 February 2019
8.2 Mower Deck Pivot Arm Bearing
The mower deck will hang slightly downward when
it’s in the offset vertical position (hanging from the
tractor) due to its weight. This is normal. If angle seems
excessive, recheck the retaining bolts.
Retighten the tapered roller bearing in the pivot arm
after 15 minutes of initial use and again at 30 minutes.
Recheck again before the next use.
8.3 Greasing
Grease all zerks according to the schedule in
“8.7 Service Record” on page 34. Use an SAE
multipurpose high-temperature grease with extreme
pressure (EP) performance. Also acceptable is an SAE
multipurpose lithium base grease.
1. Always use a handheld grease gun for all greasing.
2. Wipe grease zerks with a clean cloth before
greasing to avoid injecting dirt and grit.
3. Apply grease until new grease can be seen coming
out of the joint.
4. Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.
5. Replace and repair broken grease zerks
immediately.
6. If any grease zerk will not take grease, remove
and clean it thoroughly. Also, clean the lubricant
passageway. Replace the zerk if necessary.
8.4 Blade Servicing
Inspect blades before each use to determine that they
are properly installed and in good condition. If any
blade is bent, excessively nicked, worn, or has any
other damage, replace both blades. Do not sharpen
the blades. The blades have two cutting edges
and should be ipped when the rst edge is dull or
damaged.
Manually wiggle the blade carrier to check for
any looseness. Recheck torque every fty hours.
Retighten any loose parts.
8.4.1 Blade Removal
To remove blades, remove the nut and lockwasher
from the blade bolt through the inspection hole in the
deck of the mower near the gearbox.
8.4.2 Blade Installation
When installing blades, be sure to check the blade bolt
pivot diameter for wear. Replace the bolt if worn more
than 1/4 inch at any point. Tighten nut to 600 ft. lbs.
Always use a new lockwasher and nut when replacing
the blade bolt. Make sure blades are installed with the
cutting edge in the direction of rotation. Rotation is
counterclockwise as viewed from above the deck.
8.4.3 Blade Sharpening
DO NOT SHARPEN THE BLADES.
The mower blades are two-sided and can be ipped
over once to create a new cutting edge. Once both
cutting edges have been used the blades MUST be
replaced.
8.5 Blade Carrier Removal
1. Remove the cotter pin and loosen the castle nut on
the gearbox shaft. Do not remove the nut until the
blade carrier is loosened.
2. Use a suitable two jaw gear puller to pull the carrier
off the tapered gearbox shaft.
3. If a gear puller is not available, insert a bar through
the blade bolt the access hole with the end against
the blade carrier. Strike the opposite end of the bar
sharply. Rotate the blade carrier 180 degrees and
repeat until the carrier breaks loose.
4. Remove the castle nut and the blade carrier.
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