Steering System; Functional Overview; Hydraulic Diagram - Nilfisk-Advance Advance Retriever 2060 Service Manual

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FUNCTIONAL OVERVIEW

The 2060 / SR 1800 has a single rear drive wheel mounted on a steering spindle. The spindle shaft goes through a rack and pinion steering
box. The pinion gear is on the spindle shaft and a hydraulic cylinder moves the rack. The cylinder and steering box are located under
the rear center console.
A hydraulic steering unit, with the steering wheel mounted to it, controls the rack cylinder. The steering unit runs off the second gear in
the auxiliary pump, the oil flows through a priority divider that divides the pump output and reduces the oil flow to two gpm for the steering
system. There is a check valve built into the steering unit that allows for manual steering if there is no hydraulic oil flow to the unit. The
relief valve for the steering system is located in the priority divider block and is set to open at 1500 PSI.
P
5.2
GPM
Accessory
Pump
.50 CIR
Priority Divider
Steering System Hydraulic Diagram
ST
DV
1500
PSI
L1
T

STEERING SYSTEM

Steer Cylinder 2 X 6
L R
T P
Steering Unit
2.0 GPM
FORM NO. 56043051 / Retriever
4.5 CIR
™ 2060 - 39