17
AccuMax SP
Installation and Operation Manual
Figure 7-2 Oil Cooler Hose Connections
Figure 7-3
Hydraulic Supply Pump Connection Ports
Oil To
Reservoir
Oil
Cooler
Oil From
Hydraulic
Valve Block
Thermostat
Control
Valve
Electric
Fan
Pump B to Motor
See Section 15 for port sizes and ratings
Port S
Charge
Pump Inlet
Port A
Motor Return
Case Drain Port
Use Lowest Case Drain
as Inlet from Motor
Case Drain Port
Use Uppermost Case
Drain as Outlet to
Reservoir
Hydraulic Reservoir
The hydraulic reservoir for the system is to conform to
the description in Section 4 and to all SAE and DOT
standards. See table in Section 15 for minimum
reservoir capacity for the unit being installed.
Hydraulic Oil Filtration
Hydraulic fluid filtration is vital to the performance and
life of any hydraulic system. The AccuMax SP systems
are no different. A suction strainer of at least 200 mesh
is required in the outlet of the reservior and should be
sized to accommodate the charge pump flow of the
system without significant pressure drop.
Models 3060 thru 3300 hydraulic pumps have a spin-on
filter already installed for that particular pump’s
protection. This filter has a Beta 10 rating of 10 to 20.
Models 3020 and 3040 systems require a suction filter
with a Beta 10 rating of 10 to 20. The flow rating on the
filter should be at least 25 gpm when used for suction. A
filter element is supplied with these systems.
CAUTION: Ensure all hydraulic hoses and
components are clean and free of debris.
CAUTION: Ensure hydraulic fluid is clean and free
from contamination when filling and changing the
fluid in the system.
Hydraulic Oil Cooler
An oil cooler is required in the hydraulic system to
ensure proper oil temperature for optimum performance
and to avoid damage to the hydraulic components. The
actual cooler size required will depend on the system
requirements, the location of the cooler, and the
manufacturer of the cooler. Typical oil-to-air cooler
connections are shown in Figure 7-2. The cooling
requirements for the system being installed are listed in
the table in Section 15.
If an oil-to-water exchanger is used, proper
maintenance, mounting, and operating procedures must
be maintained. A method to circulate cool fresh water
must be provided when the hydraulic pump is engaged.
A drain port must also be provided to prevent freezing
and to allow flushing.
Hydraulic Supply Pump Connections
After completion of the mounting of all hydraulic system
components, hose connections must be made. A table
in Section 15 shows the connector and minimum hose
sizes and Figure 7-3 shows the connection ports to use
for the hydraulic supply pump. Specific pump drawings
for each system are found in Section 15.
Always use
the uppermost case drain port available.
Pump Adjustment
The supplied hydraulic pump does not require any
adjustment. The pump is adjusted to give you maximum
performance throughout the entire operating range and
has been tested with your system.
