Exposing The Batteries; Checking The Acid Level; Measuring The Acid Density - Ortopedia TOURING 926 Operating Manual

Note:
Rinse skin or body parts that have
come into contact with acid immedi-
ately with running water for several
minutes. Then see a doctor. Imme-
diately remove clothing wetted with
acid. Wash clothes with soap solution
and rinse with much water.
Always wash your hands after work-
ing on the batteries.

7.5.6.1 Exposing the batteries

1. Open the catch of the retaining strap.
– You do this by pushing together the
springs of the snap-catch (Fig. 80).
2. Lift the battery cover and swivel it to
the rear (Fig. 81).
3. Park the wheelchair on a level sur-
face and engage the parking brake.
Switch off the control unit and then
pull out the security plug.
4. Swivel up the seat. – See the Seat
section.
5. Pull out the main and battery fuses.
– See the 'Fuses' section.
48
80
81

7.5.6.2 Checking the acid level:

1. The acid level of the batteries falls
due to the evaporation of water, es-
pecially during high ambient tem-
peratures.
2. Correct the acid level with distilled
water if necessary.
3. The acid level is correct if it is:
it is just above the filling hole insert
or approximately 5 mm above the
top edge of the plates (Fig. 84).
Note:
Maintenance-free batteries:
The filling plugs are not visible. – No
maintenance is required. Acid-tight-
ness cannot be measured.
7.5.6.3 Measuring the acid den-
sity:
The acid density measurement with the
acid checker gives an indication of the
actual charge condition of the battery
cells.
Attention:
!
Comply with the contents of the
'Safety Information for Electric Vehicles'
brochure.
– Always open the sealing cap of only
one battery cell.
With the ball pump pressed, insert
the tube for sucking-in vertically, from
above, into the acid.
– Suck in the acid by slowly releasing
the ball (Fig. 85).
84
85
– The floating indicator must swim
freely in the acid.
– Compare the acid level with the
charge scale on the float.
Charge the batteries immediately if the
acid density of a cell is lower than the
scale value of 1.18 kg/dm 3 . The battery
is fully charged if the acid level is above
the scale value of 1.28 kg/dm³.
The acid density difference between the
individual cell values should not exceed
0.02 to 0.03 kg/dm³. If it does, this can
be due to battery damage. Seek the as-
sistance of a specialist workshop.
49