Climax BB4500, Operating Manual

Page: 59 / 162

P/N 92974, Rev. 1 Page 43
NOTICE
To protect tool bits from chipping, place the feed box in
NEUTRAL
before
stopping bar rotation.
3.5 P
OWER CONNECTION
3.5.1 Hydraulic machines
For the BB4500-BB5000, do the following to connect the hydraulic power:
1. Disconnect the mains power to the HPU.
2. Inspect all electrical cables and check the oil level in the hydraulic reser-
voir.
3. Inside the electrical enclosure, check that all three phases of mains power
(L1, L2, L3), and the safety ground wire are properly connected.
DANGER
High voltage in the electrical enclosure can cause serious or fatal injury.
Unplug the power unit before servicing the pump motor.
4. Close the electrical enclosure. Connect the power unit to mains power.
5. After checking that all hydraulic hose quick coupler fittings are clean, con-
nect the hydraulic hoses between the HPU and the hydraulic motor on the
boring bar. The hose connection may be switched to reverse the bar rota-
tion direction.
Checking the hydraulic pump rotation direction
NOTICE
Rotating the hydraulic pump in the wrong direction may damage the
pump and result in poor performance.
To check the hydraulic pump rotation direction, jog the power unit momentarily.
Check that the hydraulic pump is rotating in the direction indicated by the arrow
on the pump housing.
If it is not rotating in the direction of the arrow, do the following:
1. Turn off and lock out the electric power to the HPU.
2. Call a qualified person to open the electrical enclosure and identify wires
L1, L2, and L3 on the magnetic contactor. Switch any two of these wires.
Close the electrical enclosure.