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B. ELECTRICAL
Electrical installation is similar for both 12 and 24 VDC electrical systems, whether they are insulated return,
or chassis return. Use the following procedure to connect power to lift.
NOTE: A dedicated, insulated 4 AWG return (ground) wire is recommended. In either case, be certain all
connections are clean and strong.
CAUTION!
Check vehicle before drilling. Do not drill into factory
wiring, hydraulic lines, fuel lines, fuel tank, etc.
1. Mount a circuit breaker (50 amp for 24V application, and 90 amp for 12V) within 12” (30 cm) of
battery.
2. Cut one 3/4" (19.5-mm) hole through vehicle floor or wall to gain access to underside of vehicle.
Locate hole adjacent to hydraulic pump unit. Deburr hole and install rubber grommet.
3. Crimp a 5/16” ring terminal to end of four gauge, red power cable, then fasten to power cut-off
solenoid (located near hydraulic pump unit). Insert other end of red wire through grommet.
CAUTION!
When routing power cable, avoid hazards such as drive-
shafts, moving suspension parts, exhaust system, etc.
4. Route cable along vehicle frame, etc, to circuit breaker location. Make sure cable does not interfere
with moving parts or contact anything hot. Secure with cable ties every 18” (45 cm).
5. Cut red wire to an appropriate length for reaching the circuit breaker. Save the discarded wire.
6. Crimp a ¼” ring terminal to end of red wire, then fasten to circuit breaker AUX terminal.
7. Cut a 12" (30 cm) length of wire from the previously saved heavy red wire, and crimp a ¼” ring
terminal to both ends.
8. Fasten one end of wire to circuit breaker BAT terminal.
WARNING!
WEAR PROTECTIVE CLOTHING AND EYE PROTECTION AT ALL TIMES. BATTERIES
CONTAIN ACID THAT CAN BURN. IF ACID COMES INTO CONTACT WITH SKIN, IM-
MEDIATELY FLUSH AFFECTED AREA WITH WATER AND WASH WITH SOAP.
ALWAYS WORK IN A PROPERLY VENTILATED AREA. DO NOT SMOKE OR USE AN
OPEN FLAME IN THE VICINITY OF BATTERY.
DO NOT LAY ANYTHING METALLIC ON TOP OF BATTERY.
9. Fasten other end of wire to POSITIVE (+) battery terminal.
10. Connect supplied harness between terminal strip in hydraulic pump enclosure and terminal strip in
pull box. Connect harness to pendant (or to pendant extension). Refer to electrical diagrams in
Chapter III.
C. SAFETY INTERLOCKS
WARNING!
THE LIFT CONTROLS MUST BE DISABLED ANYTIME THE VEHICLE IS NOT SAFELY
PARKED. VERIFY THAT LIFT OPERATION CONFORMS TO ADA CODE 49 CFR.
INSTALLATION OF SAFETY INTERLOCKS FOR COMPLIANCE WITH ADA REQUIRE-
MENTS IS THE RESPONSIBILITY OF THE INSTALLER.
Refer to wiring diagrams in Chapter III. A voltage that is sourced from vehicle (12 or 24 VDC) is applied
to terminal five of the pump enclosure terminal strip
WHEN VEHICLE IS SAFELY PARKED. This
complies with ADA interlock requirements.
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