Landoll Bendi B40i4, Руководство по обслуживанию

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3-30 F-581-R1
TROUBLESHOOTING AND CORRECTIVE MAINTENANCE
4. Also pry (up) the bellows (rubber boot) free of the
bellows retainer plate. This exposes the mounting
plate for the steering column and the orbital control
unit. See Figure 4.
IMPORTANT
Four bolts secure the assembly to the orbital
steering mount
bracket for stability. Once removed
the unit is supported by the hydraulic tubing only.
Exercise care not to apply excessive force and bend
the tubing.
5. Remove the plastic front rotation cover to expose the
orbital control unit.
6. Remove the four bolts and hardware securing the
orbital control unit to the steering column.
7. Remove the four bolts and hardware securing the
steering column (console) to the bellows retainer
plate. Two bolts are accessed through the cutout in
the main frame (access opening)
.
8. With help, lift the steering column upwards to
disengage the shaft from the orbital unit, then
remove the steer column from the truck.
9. When installing the new steer column, you must turn
the steering shaft until it aligns with the orbital unit
and drops into place.
10. Continue by reversing the preceding steps making
sure to tighten and torque all mounting screws. See
General Torque, page 1-17.
Figure 3-21: Steering Hydaulic Lines
Orbital Steer Unit
1. Repeat Steps 1 through 5 of preceding section
“Steering Column (Console)”, beginning on
page 3-27.
2. Tag the port locations of each hydraulic line and
fitting, then disconnect the four lines from the unit.
See Figure 3-21.
3. If the unit is being replaced, or the fittings are
defective, notice the placement (angle) of the hose
fittings then remove them. Thread them into the new
steering control unit (or replace).
4. Immediately cap the ports in the control unit to
prevent oil spills.
5. Install the new steering control unit to the steering
column by following the preceding steps in reverse
order.
6. Check oil level in the hydraulic tank and fill as
needed. See "Hydraulic System Maintenance," in
Chapter 2 Planned Maintenance, page 2-9.
Load Sense Steering System
The Bendi Lift truck uses a load sense priority flow
control to meter hydraulic oil flow to the steering system.
As the operator turns the wheel, a fluid signal from the
steering control unit(orbital), shifts a load sense valve in
the hydraulic circuit prior to the truck main control valve.
This valve meters fluid from the main circuit to the
steering orbital as needed. This system provides fluid to
the steering system as needed and allows the fluid to
flow back to the tank at low pressure when the steering is
not needed, reducing power consumption.