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Powered Walk Behind Mower Part No. 04016067 Rev E © Copyright 6/2005
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Rover Mowers Ltd
ABN 11 000 257 303
TM
MAINTENANCE (Continued)
Drive Belt Adjustment
• Refer to the “Warning” and “Caution” notes at the beginning of the maintenance section.
• Do not over or under tension the belt to prevent damage or abnormal wear.
CAUTION
• Remove the drive frame cover (refer to the “Removing the Drive Frame Cover” section) and expose the belt adjustment
screw (refer figure 20).
• Using a suitable phillips head screw driver, screw the adjuster screw down carefully until the spring is fully compressed.
• Unscrew the adjuster two (2) full turns.
• Rock the gear box about the output shaft and it should move approximately 2mm under the spring load (refer figure 21).
• Replace the drive frame cover (refer to the “Replacing the Drive Frame Cover” section).
• Clean any clippings away from the underside of the gearbox near the adjusting spring before
adjusting the belt tension.
• Put a mark on one side of the screw head of the adjuster to easily identify the 2 full turns
when adjusting the belt tension.
Drive Belt Replacement
• Refer to the “Warning” and “Caution” notes at the beginning of the maintenance section.
• Refer to the “Caution” notes in the “Belt Adjustment” section.
CAUTION
• Always wear gloves when handling the cutting mechanism.
• Wear gloves and be aware of pinch points when handling the drive belt mechanism.
• Secure the mower safely when tilted upwards to access the underside.
WARNING
• Remove the drive frame cover (refer to the “Removing the Drive Frame Cover” section).
• Unscrew the drive belt adjustment screw until the spring touches the underside of the gearbox housing (refer figure 22).
• Fold the handle bars down and remove the grass catcher. Lift the front of the mower about the rear wheels until the
lower handle bar contacts the ground and secure safely in this position.
• Rotate the cutting assembly to expose the two bolts which fix the belt cover (refer figure 23).
• Using a suitable spanner, remove both bolts and washers and remove the belt cover.
• Rotate the gearbox so its pulley is as close to the engine pulley as possible. Rotate the belt off the gearbox pulley
and discard the belt.
• Only if the mower is fitted with a full disc and blades will it be necessary to remove the cutting assembly by undoing the
centre bolt and three surrounding bolts with suitable spanners.
• If the mower is fitted with the “Inline Swing Back Blade” option, rotate both blades backward until the flute on the blade
touches the blade support bar (see figure 24).
• Fit the new belt on the engine pulley, rotate the gearbox so its pulley is as close to the engine pulley as possible. Rotate
the belt into the gearbox pulley groove.
• Adjust the drive belt adjustment screw (refer to the “Drive Belt Adjustment” section.)
• Replace the belt cover, flat washers and bolts and tighten firmly.
• Replace the cutting assembly (where required) and fit the centre bolt and washer and the three surrounding bolts and
washers loosely before tightening in the following sequence and tensions - centre bolt (65-70 Nm) and three surrounding
bolts (16-19Nm)
• If the mower is fitted with the “Inline Swing Back Blade” option, rotate the blades back so they are in line with the blade
support bar.
• Lower the mower so all wheels rest on the ground.
• Replace the drive frame cover (refer to the “Replacing the Drive Frame Cover” section).
• Clean the clipping buildup off the heads of the bolts of the belt cover fixings to ensure the
spanner fits correctly.
• Clean out the belt cover and transmission area thoroughly before reassembly.
• Inspect the drive pulleys for wear, damage and make sure they are not loose while the belt
is removed. Replace as required.
• Special belts and pulleys are used for long life and accurate fitment, so replace with genuine
Rover products.
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6067 Current Artwork 10-2004.indd 5/31/2005, 8:10 AM8