SECTION IV
MAINTENANCE / SERVICE
CAUTION
If battery power is not disconnected,
there is a potential of shorting 24 VDC
against the base weldment. If this happens, both the
main controller board and charging / power driver
board will probably be damaged.
(3) Disconnect four hot wires (4) from terminals of
batteries (5).
(4) Remove six screws (6) and main cover (7) from
base weldment (3).
(5) Remove two screws (8), two screws (9),
mounting bracket (10), and partially remove
control box (11) from base weldment (3).
(6) Loosen four captive screws (1, Figure 4-57) and
separate cover (2) from control box (3).
(7) Tag and disconnect seven wire harnesses (4)
and wire (5) from main controller board (6).
(8) Remove two screws (7) and lockwashers (8)
from main controller board (6).
(9) Remove two screws (9) and main controller
board (6) from control box (3).
B. Installation
NOTE
Assure two dip switches ( #1 & #2 ) on Main Control-
ler Board (6, Figure 4-57) are both in
OFF
position.
(1) Coat threads of two screws (7, Figure 4-57) and
two screws (9) with hydraulic sealant (Loctite
569).
(2) Install main controller board (6) in control box (3)
and secure with two screws (9), two
lockwashers (8), and screws (7).
(3) Connect wire (5) and seven wire harnesses (4)
to main controller board (6).
(4) Install cover (2) on control box (3) and secure
by tightening four captive screws (1), making
sure no wires are being pinched by cover.
(5) Position control box (11, Figure 4-56) in base
weldment (3) and secure with mounting bracket
(10), two screws (9), and two screws (8).
(6) Install main cover (7) on base weldment (3) and
secure with six screws (6).
(7) Connect four hot wires (4) to terminals of
batteries (5).
(8) Install battery cover (2) on base weldment (3)
and secure with five screws (1).
(9) Raise table to its upright position.
(10) Perform calibration of return to level / neutral
position (Refer to para 4.3).
Page 4-54Printed in U.S.A.
Figure 4-57. Main Controller Board
Removal / Installation
HA5485-00
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© Schaerer Mayfield USA, Inc. 2004
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