Wright Serial 54956 and higher - Manual (Page 23)

23
Assembly
hole
Threaded
Removal
holes
Assembly
hole
6.4 Cutting Blades
In order to maintain the best cut, it is important that the blades are well sharpened and not damaged.
Bent or cracked blades or blades with large nicks need to be replaced. Blades must be balanced
after sharpening.
To change the blades:
1.Stop engine, remove the key and wait for all moving parts to stop.
2.Engage the parking brake.
3.Lift the front of the mower and secure in the raised position with jack stands.
4.Remove the deck cover.
5.While securing the bolt head under the deck, remove the nut from the top of the spindle by
rotating clockwise.
6.Install new or re-sharpened blade. (Ensure the blade spacers are reinstalled with the same qty
and location)
7.Torque nut to 70-80 ft lbs.
6.5 Spindle and Drive Pulley Split hub R&R
•
Remove 2, ¼” bolts from split hub and install in threaded holes in hub.
•
Slowly tighten each bolt, alternating as you tighten bolts against the pulley.
•
The hub will separate from the pulley.
•
Replace grade 8 bolts and install in reverse order using the assembly holes to tighten hub onto
pulley and spindle shaft.
6.6 Blade Adjustments and Height-of-Cut
Before Adjusting the Height-of-Cut be sure of proper air pressure in all four tires and check for even
tire wear. The height-of-cut can be adjusted the following ways:
•
Coarse Adjustment: For the coarse adjustment the rear wheels, the front casters should be adjusted
at the same time.
The rear wheels adjust by pivoting the rear axle, See Parts List, by the upper support bolt. It will be
necessary to jack up the rear of the mower and place it on blocks. The rear wheels do not need to be
removed. Make certain there is no weight on the rear axle before loosening any hardware. Loosen
the upper pivot bolts slightly. Allow all threads to remain engaged on the nut. Remove the bolts on
the lower portion of the rear axle weldment. The bolts are accessible from the inside of the tractor
body. Align the rear axle with one of the five adjustment holes in the tractor body. Each adjustment
setting changes the mower height by 0.75”.
a.Use the highest hole in tractor frame for cutting heights of 1.75”-3.0”.
b.Use the second highest hole in tractor frame for cutting heights of 2.5”-3.75”, factory setting.
c.Use the middle hold in the tractor frame for cutting heights of 3.25”-4.5”.
d.Use the lowest two holes in tractor frame for cutting heights of 4.0”-5.75”.
Adjust the front caster arms at their respective support brackets equally in one of the seven settings
up or down 0.25” each through a 1.5” total range.
Tightening will
separate the
hub from the
pulley