Blade Maintenance; After Mowing/Storage; Fault Finding - Bosch ALM 28 Operating Instructions Manual

EURO • Printed in England • BA F 016 L69 849 • ALM 28/30 • GB • OSW 10/01
ALM 28/30.book Seite 4 Freitag, 19. Oktober 2001 9:05 09
For all correspondence and spare parts orders, al-
ways include the 10-digit part number from the
nameplate of the machine!

Blade Maintenance

Stop and remove plug from the power sup-
ply.
Place the handle in the vertical position.Turn the ma-
chine on its right side and inspect the cutter: If blunt
or damaged, fit a new blade as follows:
To remove the worn cutter 12 push along its length,
in direction of the arrow, as in figure G until it snaps
off the pivot 14.
Clean the pivot 14 of any residual plastic/debris with
a sharp knife.
To refit the new cutter 12 place the eyelet over the
pivot 14 and pull outwards until it snaps into place.

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
Poor hovering
Machine vibrates
14 • F 016 L69 849 • TMS • 16.10.01
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
Cutter blunt
Underside of machine badly clogged
Blocked air filter
Underside of machine badly clogged
Fan not locked in place
Cutter stick worn or damaged
English - 4
Accessories
Replace blades ALM 28 (white)
Replace blades ALM 30 (yellow)

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 H.
Turn the machine on its side and clean the blade
area. If grass cuttings are compacted in the blade
area, remove with a wooden or plastic implement.
Store the machine in a dry place. Do not place other
objects on top of the machine.
To aid storage loosen the wing nuts 7 and fold the
handles. If necessary hang as shown in figure C.
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 cutter
(see "Blade Maintenance")
Clean machine
(see "After Mowing/Storage")
Clean air filter (see "After Mowing/
Storage")
Clean machine
(see "After Mowing/Storage")
Lock cutting disc
Replace cutting stick
F016 800 008
F016 800 107