Webb WELS38 - C General Service Procedures; Maintaining Flail Blades; Replacing Drive V-Belt and Pulley

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C. General Service Procedures
The following are general guidelines for servicing common wear components on the scarifier. ALL
MAINTENANCE AND SERVICE WORK MUST BE PERFORMED BY A TRAINED AND EXPERIENCED
TECHNICIAN. Ensure that the work area is clean and free of debris prior to starting any maintenance or
service work. Small particles may become trapped in key components, which may lead to serious damage to
the machine and cause severe bodily harm to the operator or technician.
Before performing any service and maintenance procedures, consult these general safety actions for a
safe working environment.
1. Make sure that both the engine and scarifier are cool, prior to any service or maintenance work.
2. Verify that the work area is clean and free of any debris, tripping or fire hazards, and other
potential sources of danger.
3. Always wear correct safety clothing and equipment for the job. These can and should include
eye and ear protection, gloves, dust mask and any other items that are appropriate for the job and
jobsite requirements.
4. Ensure that the technician has tied back or removed any loose hair, clothing and any other
potential hazards and obstructions.
5. Disconnect spark plug.
Often, small problems can occur in daily operation of any machine. The following troubleshooting guide
aims to address common issues and offer suggestions, on how to correct such problems.
Please review this guide before requesting service. Small problems can often be fixed simply by
following these guidelines. If there are any further questions or concerns, please do not hesitate to contact
your local authorised dealer for assistance!
1. Maintaining Flail Blades
Flails are a normal wear and tear item. There are two procedures that apply to the maintenance of flails:
a. If the striking edge of the flails are dulled by use (see diagram 2), rotate the rotor end to end for
fresh blades.
b. Replacing the flails when they have reached the wear limits on diagram 2.
Please contact your local dealer for details.
Diag.2:Flail Maintenance Reference
2. Replacing drive V-belt and pulley,
If it is needed to replace drive V-belt and pulley, please contact your local dealer for details.
Use Webb brand-name parts for compatibility and optimum performance.
Use of any other parts prior to consulting with your local authorised dealer
will void all warranties expressed herein.
MAINTENANCE PROCEDURES CONT'D...
TROUBLESHOOTING
Rotation
Rotation
wear Edge
Length minimum
3.0"/76mm
Original Flail
Edge
New
Flail Edge
ALWAYS MAKE SURE THAT THE MACHINE IS TURNED OFF AND ON
STABLE GROUND, PRIOR TO PERFORMING ANY SERVICE OR
TROUBLESHOOTING PROCEDURES.
Problem
Possible Causes
Suggested Solutions
Engine stalls or
labours when raking
Flails set too low to ground.
Raise flails so that they just skim the
ground when level.
Abnormal or
excessive vibration
Damaged or missing flails
Loose handle bolts
Loose engine bolts
STOP WORK IMMEDIATELY
Replace any damaged or missing flails and
tighten all bolts and nuts.
Engine will not start
Stop switch is off.
Throttle in “off” position. Engine
not in full choke position.
Out of petrol
Bad or old petrol.
Spark plug wire is disconnected
or improperly connected.
Engine oil level too low (Oil Alert).
Dirty air cleaner
Check that all switches are on.
Verify that throttle and choke position are in
proper setting.
Fill petrol tank up.
Empty and dispose of bad/old petrol as per
local bylaws. Refill with new petrol.
Reconnect spark plug wire.
Refill engine oil.
Clean or replace air filter.
Engine is locked and
will not pull over
Debris locked up against rotor
assembly and/or drive pulleys.
Engine problem.
Disconnect spark plug wire and remove
debris prior to restarting machine.
Refer to engine owner's manual for
instructions on any engine problems.