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Installation and Operations Manual
— Model 400 Series
TROUBLESHOOTING
22
B&B ARMR
A Division of B&B Roadway and Security Solutions 04X0 Rev G
Symptom
Actions
HPU pump will not turn on
1. Check power
2. Check motor overload, press
start
3. Check motor starter
4. Check low level switch
5. Check pressure switch
Gate makes noise during operation
1. Check that roller wheel bearings are
greased
2. Check that gate is not moving too fast
3. Check that the guide wheels are properly
adjusted
4. Check that the spur gear is properly
adjusted to the gear rack
Hydraulic unit is excessively hot
1. Check that the pressure relief valve is
closed (fully clockwise)
2. Check that the pressure switch is adjusted
to shut the motor off before 1850psi
3. Check for correct voltages
Gate moves too slowly
1. Check for mechanical binds (guide wheels
out of adjustment, debris under the wheels
or on the inside of gate
2. Check flow control valve
Traffic indicator light does not change
1.
Check proper limit switch operation
2.
Check bulbs
3.
Check PLC outputs
Locking pins are moving but not giving
signals up or down to I3
1. Check the proximity switches at the
locking pin mechanism