ahlmann AS 90tele, Operating Instructions Manual, Page: 70 / 103

T90C/T90D 8-11
Maintenance 8
1 2
Figure 8-24
Figure 8-26
Figure 8-25
8.2.10 Replacing the fuel filter
See the operating instructions for the engine.
8.2.11 Replacing the starter battery
NOTE
The starter battery is a maintenance-free part according
to DIN 72311, section 7. It is located to the right in the
motor compartment.
(1) Remove the main battery switch (4-10/7).
(2) Open the motor hood.
(3) Loosen and remove the fastening screw (size 17)
(8-24/1) of the battery holder.
(4) Loosen and remove the connecting cables (8-24/2)
from the batteries (size 13).
DANGER
Always remove the negative terminal first and then the
positive terminal. Installation is in reverse order.
(5) Remove the battery and replace it.
(6) Apply grease to the terminals before fastening them.
(7) Installation is in reverse order.
DANGER
Make sure the fastenings are secure.
(8) Close the motor hood.
8.2.12 Maintaining/replacing the fresh air
filter
(1) Lift and mechanically prop up the telescope arm [e.g.
by inserting the telescope arm support (option) (1-1/
arrow)] and lower the telescope arm until it rests on the
telescope arm support and swivel all the way to the left or
right.
(2) Loosen the four fastening screws (size 10) (8-25/
arrows) of the heater cover and remove the cover.
(3) Remove the filter elements (8-26/arrows) and clean
them with compressed air.
CAUTION
Do not use any petrol, hot fluids or industrial compressed
air for cleaning.
(4) Check the filter elements for damage.
NOTE
The filter elements must be replaced when they are
damaged or every 1500 operating hours .
(5) Insert the filter elements and install the heater cover.