Disabled Passenger Lift DPT-512 | 19
SECTION 1 | GENERAL INFORMATION & OPERATING PROCEDURES
1.1.9 | Hydraulic System
The hydraulic system provides hydraulic power to raise and lower the
van body and the stabilizers. See Figure 1.1.9 for the Hydraulic System
Schematic, and Figure 1.1.10 for the Hydraulic Components Group. The
primary hydraulic system components are described in the following:
COMPONENT
DESCRIPTION
Hydraulic Reservoir
This 30 U.S. gallon (114 liter) stainless steel
tank is located on the left side of the unit.
A drain plug is located at the bottom of the
tank. A fill cap and strainer are part of the
cleaning port. There is a separate vent cap on
top of the tank. On the side of the tank there
is a sight glass fluid level indicator. A suction
line strainer is located inside the tank.
Suction Line Strainer
A suction line strainer is located in the outlet
port from the hydraulic tank. This strainer has
a 100 mesh stainless steel element.
Gate Valves
Gate valves are located at the outlet and
return ports of the hydraulic oil reservoir.
These valves must be kept open during
normal operation
Hydraulic Pump
The hydraulic pump is mounted to the PTO.
It is a rotary gear pump. The pump delivers
hydraulic fluid to the van body lift and
stabilizer cylinders. See Section 1.3 of this
chapter for pump specifications.
Hydraulic Hand Pump
(inside hydraulic box)
The hand pump provides emergency
hydraulic power in situations when the main
pump fails.
Check Valves
Check valves prevent reverse flow of hydraulic
fluid into one pump when another pump is in
use.
Hydraulic Return Line
Filter
This filter is located at the return port of the
hydraulic reservoir. It has a 10-micron spin-on
cartridge and a condition indicator.
Hydraulic Pressure
Filter
A high-pressure filter is located between the
hydraulic pump and the directional control
valve. It has a 10-micron disposable element.
Hydraulic Pressure
Gauge
(inside hydraulic box)
The pressure gauge is calibrated from 0 to
3000 psi and indicates the system hydraulic
pressure at the pump outlet.
Summary of Contents for 25781
Page 12: ...Disabled Passenger Lift DPT 512 12 FIGURE 1 1 1 DISABLED PASSENGER TRANSPORTER MODEL DPT 512...
Page 13: ...Disabled Passenger Lift DPT 512 13 FIGURE 1 1 1 DISABLED PASSENGER TRANSPORTER MODEL DPT 512...
Page 22: ...Disabled Passenger Lift DPT 512 22 FIGURE 1 1 10 HYDRAULIC COMPONENT GROUP...
Page 33: ...Disabled Passenger Lift DPT 512 33 FIGURE 1 2 1 1 CAB CONTROLS AND INDICATORS...
Page 36: ...Disabled Passenger Lift DPT 512 36 FIGURE 1 2 1 3 VAN BODY CONTROL STATION...
Page 38: ...Disabled Passenger Lift DPT 512 38 FIGURE 1 2 1 7 EMERGENCY OPERATING CONTROLS...
Page 57: ...Disabled Passenger Lift DPT 512 57 FIGURE 2 1 9 3 LUBRICATION POINTS...
Page 74: ...Disabled Passenger Lift DPT 512 74 FIGURE 2 3 1 HYDRAULIC COMPONENT GROUP...
Page 95: ...Disabled Passenger Lift DPT 512 95 FIGURE 4 2 5 PLATFORM ASSEMBLY 6 7 8 4X 2 3 8X 1 5 4 9...
Page 107: ...Disabled Passenger Lift DPT 512 107 FIGURE 4 2 11 CAB CONTROLS AND INDICATORS...
Page 109: ...Disabled Passenger Lift DPT 512 109 FIGURE 4 2 12 VAN BODY CONTROL STATION...
Page 111: ...Disabled Passenger Lift DPT 512 111 FIGURE 4 2 13 REAR VAN CONTROL STATION...
