BRP E250DHLSCS, Service Manual

Page: 329 / 396

327
TRIM AND TILT
ELECTRICAL CIRCUIT TESTS
14
B. High current draw – Check for:
•
Pump binding
•
Motor binding
•
Valves sticking
•
Relief valve springs damaged (stall up only)
C. Normal current draw, slow operating
speed – Check for:
•
Impact valves damaged
•
Check valve or shuttle valve malfunctioning
•
Manual release valve damaged
Trim and Tilt Motor No Load Test
IMPORTANT:
Securely fasten motor in a suit-
able fixture before proceeding with this test.
Use a battery rated at 360 CCA (50 Ah) or higher
that is in good condition and fully charged to per-
form this test.
Connect a 0 to 50 A ammeter in series with the
battery positive (+) terminal, ammeter red lead
toward battery.
Attach or hold a vibration or mechanical tachome-
ter to the motor while performing this test.
Monitor motor RPM and current draw.
The motor shaft must rotate clockwise, as viewed
from the pump end, when positive (+) is applied to
the blue lead, and negative (–) is connected to
green lead.
The motor shaft must rotate counterclockwise, as
viewed from the pump end, when positive (+) is
applied to the green lead, and negative (–) is
applied to the blue lead.
If test results vary, replace the motor.
30957
DR4238r
Green lead (+)
Blue lead (-)
Blue lead (+)
Green lead (-)