Dhollandia DH-L 3300 lbs, Installation Manual, Page: 48 / 82

47
DHOLLANDIA
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A short (-) ground cable to the vehicle chassis is prone to oxidation, bad contact and failure. Moreover, it is not allowed on many
modern commercial vehicles.
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On type 1 and type 2 control boxes, the (-) ground cable is routed directly from the batteries to the ground point of the electric motor.
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On type 3 control boxes, there is a possibility to split the (-) ground cable from the negative terminal of the batteries to the ground
point of the electric motor, and connect them at the rear corner of the control box. Apply a thick layer of anti-corrosive grease to protect
the connection point against corrosion.
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Foresee a flexible protective conduit over the full length of the (+) battery cable [# 1 below] and the (-) ground cables [# 2].
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Make sure this conduit is suitable for automotive purposes, and its class is adapted to possible sources of heat nearby. In case of
doubt, contact your national DHOLLANDIA distributor. See page 4 for contact info.
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Fasten all connections at both ends of the cables thoroughly. Loose connections can lead to bad contacts and overheating, followed
by premature failing of the electrical circuit.
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Apply a thick layer of dielectric grease to the electric connections to the main fuse and the batteries.
1 (+) battery cable 6 motor relay
2 (-) ground cable 7 electric motor
3 12V or 24V battery 8 dual toggle-switch control box
4
main external control box integrated in the power pack,
with main battery disconnect switch
9 cabin switch
5 main battery disconnect switch 10
separate main external control box with main battery
disconnect switch
10a ground connection point at rear of control box