Disabled Passenger Lift DPT-512 | 21
SECTION 1 | GENERAL INFORMATION & OPERATING PROCEDURES
COMPONENT
DESCRIPTION
Lift Lock Valves
Two lock valves prevent the lift from lowering.
They are normally closed, two-way, two-
position, solenoid operated poppet valves.
When closed, the lock valves allow free flow
into, but not out of, the lift cylinders. When
the valves open, hydraulic fluid flows out of
the lift cylinders and the van body lowers.
A manual override on each valve permits
manual lowering when used with the manual
override on the directional control valve.
Flow Control Valve
A flow control valve is located in the line
between the directional control valve and the
lift cylinders. The flow control allows free flow
of hydraulic oil into the lift cylinders. Reverse
flow out of the cylinders must go through a
section of the valve that restricts flow. The
valve is manually adjustable and controls the
descent rate of the lift.
1.1.10 | Power Lift Gate Electro-Hydraulic
System
The rear lift gate has its own hydraulic system, separate from the hydraulic
system on the truck. It is completely self-contained. This system’s only uses
are to raise and lower the lift gate.
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...
