Disabled Passenger Lift DPT-512 | 55
SECTION 2 | SERVICING THE HIGH LIFT TRUCK
2.1.8 | Non-Scheduled Servicing
Non-scheduled servicing consists of adjustments and maintenance operations
that are not required at regular intervals, but are performed as required.
The table below lists common non-scheduled service needs:
SERVICE PROCEDURE
PERFORM WHEN
Tighten or replace leaking
hydraulic fittings.
Leaks are evident.
Replace cracked, cut, or
deteriorated hydraulic hoses.
Inspection reveals hoses are
deteriorated or leaks are evident.
Replace hydraulic cylinder seals.
Oil leaks from the cylinder are
evident.
Adjust lift flow control valve.
Lift lowers too rapidly. See Section
3 for procedure.
Adjust hydraulic pressure relief.
Hydraulic pressure is inadequate
to operate lift or stabilizers
smoothly. See Section 3 for
procedure.
Adjust hydraulic pressure switch.
Lift will not raise with stabilizers
fully lowered.
Bleed air from the hydraulic lines.
After removal or replacement of
hydraulic components. See Section
3 for procedure.
Replace burned out light bulbs or
fluorescent tubes.
Lights are burned out.
Service rear lift gate, generator set,
or heating/air conditioning unit.
As required.
2.1.9 | Lubrication
2.1.9.1 | Truck Chassis
Lubricate the truck chassis in accordance with the manufacturer’s
instructions. Refer to the truck owner’s manual for truck lubrication
information.
2.1.9.2 | Tracks
The tracks for the lift mechanism should be steam cleaned semi-annually.
This will prevent excessive binding and wear on the tracks and rollers.
The tracks for the sliding platform section should be steam cleaned at the
same time.
2.1.9.3 | Scissors Lift
Grease fittings on the scissors lift mechanism should be lubricated each week.
See the Lubrication table below and Figure 2.1.9.3 for locations of fittings.
NOTE:
A thin oil film should be
visible on the cylinder shaft.
A steady drip of oil indicates a
need for service.
CAUTION!
Scissors must be securely
blocked by maintenance stops
when lubricating scissors and
lift cylinder fittings.
NOTE:
Scissors must be fully
lowered to grease roller
fitting and front pivot pin
fittings. Holes in roller tracks
provide access to fittings.
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...
