Blade Maintenance; Fault Finding - Bosch ALM 34 Instrucciones De Servicio

EURO • Printed in England • BA F016 L69 850 • ALM 34 • OSW
F016 L69 850.book Seite 4 Donnerstag, 17. Januar 2002 1:58 13
Maintenance
Stop and remove plug from the power sup-
ply.
Note: To ensure long and reliable service, carry out
the following maintenance regularly.
Regularly check for obvious defects such as a loose,
dislodged or damaged blade, loose fixings, and
worn or damaged components.
Check that covers and guards are undamaged and
correctly fitted. Carry out necessary maintenance or
repairs before using.
If the mower should happen to fail despite the care
taken in manufacture and testing, repair should be
carried out by an authorised customer service agent
for Bosch garden products.
For all correspondence and spare parts orders, al-
ways include the 10-digit part number from the
nameplate of the machine!

Fault Finding

The following table gives checks and actions that you can perform if your machine does not operate correctly.
If these do not identify/remedy the problem, contact your service agent.
Warning: Switch off and remove plug from mains before investigating fault.
Symptom
Machine fails to operate
Machine functions
intermittently
Machine leaves ragged
finish
or
motor labours
Cutting blades not rotat-
ing
Excessive vibration/noise Blade nut/bolt loose
Poor hovering
14 • F 016 L69 850 • TMS • 15.01.02
Possible Cause
Power turned off
Mains socket faulty
Extension cable damaged
Fuse faulty/blown
Mower in long grass
Extension cable damaged
Machines internal wiring damaged
Height of cut too low
Cutting blade(s) blunt
Underside of machine badly clogged
Blade fitted upside down
Cutting blade obstructed
Blade nut/bolt loose
Cutting blades damaged
Fan damaged.
Blocked air filter
Underside of machine badly clogged
English - 4

Blade Maintenance

See "Height of Cut Adjustment".
After Mowing/Storage
Clean the exterior of the machine thoroughly using a
soft brush and cloth. Do not use water, solvents or
polishes. Remove all grass and debris, especially
from the air filter as in figure G.
Turn the machine on its right side and clean the
blade area. If grass cuttings are compacted in the
blade area, remove with a wooden or plastic imple-
ment such as the plastic spanner/scraper provided.
Store the machine in a dry place. Do not place other
objects on top of the machine.
To aid storage loosen the wing nuts 8 and fold the
handles.
Ensure cables are not trapped when folding/
unfolding top handles, do not drop the han-
dles.
Remedy
Turn power on
Use another socket
Inspect cable, replace if damaged
Replace fuse
Increase height of cut and tilt mower
Inspect cable, replace if damaged
Contact Service Agent
Increase height of cut (see "Height of
Cut Adjustment")
Replace blade(s)
(see "Blade Maintenance")
Clean machine
(see "After Mowing/Storage")
Refit blade correctly
(see "Blade Maintenance")
Clear obstruction
Tighten blade nut/bolt
Tighten blade nut/bolt
Replace blade.
Replace fan (contact service agent)
Clean air filter (see "After Mowing/
Storage")
Clean machine
(see "After Mowing/Storage")