MULTIQUIP MAYCO LS400 Operation And Parts Manual page 61

Lights and Signals
Before each tow, check the trailer taillights, stoplights, turn
signals and any clearance lights for proper operation.
Replace any broken or burned-out lamps as necessary.
Check the wire harness for cuts, fraying or other damage. If
it needs replacing, contact your dealer.
MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11) — PAGE 61
LS400/LS500 PUMP — TRAILER SAFETY GUIDELINES
Figure 60. Trailer to Tow Vehicle Wiring Diagram
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WARNING Trailer Lights
Improper operating taillights, stoplights and turn signals
can cause collisions.
Check all lights before each tow.