J&J Amusements Bumper Boat 2014 Service Manual page 75

DIAGNOSING PROBLEMS (Electric only)
Most bilge pump problems are mechanical; ie: plugged screen, blocked impellor or foreign material causing impellor
drag.
PROBLEM: Pump does not work, and daily inspection shows standing water in the hull.
Solution: Remove water from the hull. Use a pump and discharge hose from spare parts and clip the leads to the bat-
tery pack. The new pump will have 3 leads. (The brown wire is normal "intermittent" operation, the brown/yellow
wire is "pump on" constantly). With the discharge hose exiting to the pond, clip the brown/yellow wire to the posi-
tive post of the battery pack, then clip the black wire (ground) to the negative post of the battery pack. Tip: Replace/
re-charge batteries prior to testing. If the battery pack is discharged, pull up another boat with a charged system and
pull the charge lead out. Use this as your power source to evacuate the water from the inoperative unit. Remove the
bilge pump from the holder clips, and clean the screen and back flush the intake with a water hose. Inspect the wires
for corrosion and/or damage. (You cannot test voltage drop unless current is flowing in the circuit). Replace the pump
using the brown wire as the main power feed. This provides the proper "amp load" for function of the pump.
PROBLEM: Pump runs constantly.
This is caused most often by a load/drag against the impellor, tricking the system into pumping all the time. Small
amounts of foreign material can cause this. In some cases, a worn impellor shaft can cause excess drag. Clean/replace
as needed.
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