Diamond Products CB30E-XL - Manual (Page 34)

DESCRIPTION AND SPECIFICATIONS
Pump: Gear, pump rotation is clockwise (motor is CCW).
Maximum GPM: 19 GPM (72L/M). Flow will decrease as pressure approaches relief.
Hydraulic Fluid Tank Capacity: 11 gallons (41.6Liters)
Hose Couplings: Bruning quick disconnect, 3/4 inch & ½ inch.
Relief Pressure: Factory set at 2300 PSI/158 Bar (at valve outlet port). Adjustable to 750
PSI/52 Bar, CURRENT LIMITTED TO 2300 PSI.
Electric Motor: Baldor 30 HP, C Face, 1760 RPM, 208-460 Volts, 575 Volts (Canada only).
This unit is compatible with most hydraulically driven sawing and drilling components. The
system may not be compatible with components of some manufacturers.
The power unit was inspected and operated before shipment and should not require any
additional adjustments prior to its initial use.
Hydraulic Fluid: The reservoir of the
hydraulic power unit must be full prior to
start-up. The use of high quality petroleum
based hydraulic oil with the following
properties is recommended:
 Anti-wear
 Low
foaming
 Rust and oxidation inhibitors
 Wide temperature range
 Fluid viscosity: 8-1000 Centistokes
(52-4600 SUS). The unit is shipped
with an ISO 46 Viscosity grade
(8Cs/52SUS @ 212F/100C and
46Cs/210SUS @ 104F/40C).
The oil must be kept free of contamination
to avoid damage to system components.
The strainer in the fill cap must always be
in place when adding oil. Quick
disconnects must be cleaned before
connections are made.
Flow Control Valve: The pressure
compensated flow control valve on this unit
allows full flow control. Flow settings are:
0-2, all flow routed to tank; 2-10, adjustable
range.
Relief Valve: Relief pressure can be
adjusted using an Allen wrench at the relief
cartridge, which is mounted just below the
front panel. The relief can be set as low as
750 psi; do not exceed 2300 psi. To adjust,
the flow control must be set at 10 and no
tool should be attached. This will force all
flow over relief. The relief is factory set at
2300 psi and should rarely need
adjustment. Higher relief settings may
cause excessive tripping of the overload
relay.
Hydraulic Oil Cooler: The power unit is
equipped with a brazed plate style oil
cooler. Water should be passed through
the cooler before being used for dust
control or blade & bit cooling. Some tools
will automatically shut off water flow when
not actively cutting, drilling, etc. This may
result in higher oil temperatures if the
power unit continues to run for long periods
without cooling water.
IMPORTANT: If there is a risk of frost
the water must be drained from the
cooler to prevent damage by freezing.
HOSES: Large diameters and short
lengths are preferred and offer the highest
system efficiency. If one is operating 50 ft
(15.2M) from the power source, there is
also a 50 ft (15.2M) return for a 100 ft
(35.5M) total hose length. With 20 GPM
and oil at 100 deg. F (37.8C), this could
result in a 600 psi (41 Bar) pressure loss
with ½” hose and a 200 psi (14 Bar) loss
with 5/8” hose. Pressure loss will change
dramatically with oil temperature.
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