Land Pride ZR52 User Manual
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Section 4: Maintenance and Lubrication
4/19/10
ZR44 & ZR52 (S/N 472619 & below) Accu-Z Razor
®
Zero Turn Mowers 356-059M
16. Re-attach the negative battery cable.
Mower Blade Maintenance
Check the mower blades daily, they are the key to power
efficiency and well groomed turf. Keep them sharp, a dull
blade will tear rather than cut the grass, leaving a brown
ragged top on the grass within a few hours. A dull blade
also requires more power from the engine.
Replace any blade which is bent, cracked or broken.
!
WARNING!
Never attempt to straighten a bent blade by heating, or weld a
cracked or broken blade as the blade may break and cause
serious injury.
!
DANGER!
Never work with blades while engine is running or blade
engagement is engaged. Always place blade engagement switch
in the down (Off) position, place control levers in park position
and turn engine off. Block up mower when you must work under
it. Wear gloves when handling blades. Always check for blade
damage if mower strikes rock, branch or other foreign object
during mowing!
Mower Blade Removal
Use a 15/16” wrench to remove the 5/8” cap screw holding
blade to spindle saddle from underneath.
Sharpen the blades on a grinder following pattern as
shown in Figure 4-12. Touch-up sharpening can be done
with a file.
Check the blades for balance following grinding. A
commercial balancing tool is available through most
hardware supply stores, or balancing can be done by
placing the blade on an inverted line punch or 5/8” bolt.
Blade should not lean or tilt. Spin the blade slowly, blade
should not wobble. If blade is out of balance, true it up
before reinstalling.
Lay the blade on a flat surface and check for distortion.
Replace any distorted blade.
Refer Figure 4-13 and Figure 4-14 on next page.
Do not re-use spindle bolts which have stripped, worn or
undercut threads. Refer to “Torque Values Chart” on
page 35 when replacing hardware for proper torque.
!
WARNING!
When mounting blades, rotate them after installation to ensure
blade tips do not touch each other or sides of the mower.
Pump/Motor Belt Removal
Figure 4-11
Engine Pulley
Belt
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Resharpening Pattern
Do not sharpen to original pattern (below).
It is easier to get a straight cutting edge following the
resharpening pattern shown above.
Original Edge
Blade Resharpening
Figure 4-12
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