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RE50 Owners Manual
Maintenance
Service of the drive chain system
• Replacement - Some toothed belts look a like,
but they are not, use only the belt and sprockets
recommended as per the correct spare parts
number. Wrong pitch drive belt
fi
tted will cause
excessive sprocket wear and possible drive failure.
• Tension the drive belt by tensioning the idler
pulley that depresses onto the back of the belt
by loosening the 2 bolts holding the bracket in
position, tighten the bolt on the end of the bracket
until you can only depress the belt in 1/4” when
depressing midway between the 2 sprockets.
When this is correct re-tighten the 2 bolts again
that hold the bracket onto the body. Be sure that
the idler wheel is square to the toothed belt (see
drawing page 29).
Service of smoothing roller bearings
• Whilst the Roller is suspended by the Trailer, check
operational smoothness of the bearings
fi
tted to
each smoothing roller by rotating the rollers by
hand. If bearing tightness, roughness or excessive
looseness is detected, replace the faulty bearings.
• If bearings are faulty
(a)
Remove the complete smoothing head
unit assembly from the machine, undo the
four swivel mount bolts on the upper body
and disconnect the steering rod, wheel the
roller away until the total head assembly is
exposed to work on.
(b)
Remove roller shaft bolts from end plates,
remove rollers from the heads.
(c)
Fit new bearings, replace rollers into the
heads, lubricate shaft bolts with an anti seize
compound before installing them. Tighten
securely and ensure rollers rotate freely
when fully tightened.
(d)
If the connecting rods are removed or
lengths altered ensure they are correctly
adjusted so that the two heads are parallel
to each other when in the straight ahead
position. Adjust if necessary.
