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3
Rover Mowers Limited MULCH 'N CATCH
TM
3. MAINTENANCE
3.1 General Mower Maintenance
Refer to your Rotary Lawnmower Owner’s
Manual, Maintenance Section.
3.2 Mulching Equipment
For optimum mulching performance:
• The mulching blades are to be kept sharp.
• Maintain the blade sharpening angle when
sharpening.
• Keep the cutting edge feather free when
sharpening.
• Keep the underside of the mower deck and
the mulch plug free of buildup.
3.3 Cutting Assembly
1. Disconnect the spark plug wire.
2. Move the Cut Height Lever to the high cut
position and fold the handle bars down.
3. Tilt the mower so that the spark plug is up.
4. Inspect the cutting assembly for damage and
wear.
5. Check the disc retaining bolts. Tighten the
centre bolt to 65-70 Nm and the three
concentric bolts to 8-11 Nm. For Models
35m, 75m, 16-19 Nm. For Models 50m, 51m,
60m, 61m and 80m
3.4 Blade Change
1. Disconnect the spark plug wire.
2. Set the mower to the high cut position.
3. Lift the rear flap and prop open to give access
to the blades. (Figure 4).
4. Remove the blade retaining bolts, nuts and
washers and discard.
5. Fit new blades, blade bolts, washers and nuts
in sets to maintain balance (Figure 5).
6. Tighten the blade nuts to 16 Nm. Check that
the blades are free to move when the nut is
tensioned.
7. Remove the flap prop and replace the spark
plug wire.
USEFUL MULCHING HINTS:
Mulch mowing is an acquired art form and
to produce the best results consistently, follow
these useful hints:
• Do not attempt to mulch if the grass is too
wet. Wet grass tends to clump together and
does not evenly spread out. It also clogs up
the underside of the base.
• Do not mulch on too low a cutting height.
Remember the maximum cut should be
25mm off the top of the grass, or 1/3 the
grass blade height, whichever is the lesser
amount. (Figure 6).
• Do not push the mulch mower too fast. To
obtain the best finish it may be necessary to
regulate the ground speed.
Figure 5- Blade and Fasteners
Figure 4 - Blade Change
WARNING
Before working on the mower.
* Stop the engine
* Remove the spark plug wire
WARNING
Before working on the mower.
* Stop the engine
* Remove the spark plug wire