Keith WALKING FLOOR Workhorse User manual

OWNER’S MANUAL
Version: English, 002, June 2008
Updated 7/12/17

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Table of Contents
1 Introduction ...............................................................................................................................
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2 Description of the WALKING FLOOR®system ......................................................................
2.1 Use of the WALKING FLOOR system ..............................................................................
2.2 Operation of the WALKING FLOOR system ....................................................................
3 Technical specications of the WALKING FLOOR Workhorse ..............................................
3.1 Specications of the hydraulic installation ........................................................................
4 Operation ...............................................................................................................................
4.1 Manual operation ..............................................................................................................
4.2 Electric operation ..............................................................................................................
4.2.1 Electrical control Load / Unload / On / O󰀨.......................................................................
4.2.2 Electrical control On / O󰀨.................................................................................................
5 Components.............................................................................................................................
5.1 The cylinder........................................................................................................................
5.2 The check valve..................................................................................................................
5.3 The switching valve............................................................................................................
5.4 The on/o󰀨 valve..................................................................................................................
5.5 The control valve................................................................................................................
5.6 The hydraulic plumbing......................................................................................................
5.7 Installation of oor slat with Kwik-Klamp®system ............................................................
6 WALKING FLOOR Workhorse system maintenance................................................................
7 Solving problems......................................................................................................................
7.1 Emergency Provision.........................................................................................................
8 Warranty...................................................................................................................................
8.1 Warranty conditions .................................................................................................................
Registration card......................................................................................................................
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Introduction
We at KEITH Mfg. Co. and KEITH WALKING FLOOR Europe, thank you for having chosen the
KEITH®WALKING FLOOR®loading and unloading system. We are proud of the fact that we
manufacture the simplest and most trouble-free loading and unloading system. With the KEITH
WALKING FLOOR system you have the versatility of a at oor, combined with the opportunity to
load and unload practically any material you desire.
The following pages contain a description of the operation and the maintenance of your KEITH
WALKING FLOOR system, a troubleshooting manual and working drawings of a number of the most
important components of the system. Important information is also provided concerning the hydraulic
installation on your vehicle. You must ensure that this hydraulic installation satises the stated
requirements. We maintain a website at www.keithwalkingoor.com which provides an up to date
information resource from which manuals can be downloaded.
Make sure that you have read and understood the manual completely before you use the KEITH
WALKING FLOOR system. If you have problems or require advice do not hesitate to contact us. It
goes without saying that we will be pleased to help you!
Once again, thank you for choosing a KEITH WALKING FLOOR loading and unloading system.
Yours Faithfully,
All information in this document is o󰀨ered in good faith and is believed to be reliable. The right to change or amend is
hereby expressly reserved. The user is not discharged of ascertaining himself on the correctness of the information.
KEITH WALKING FLOOR Europe is not responsible for any misinterpretation or errors.
© 2008, KEITH Mfg. Co. All rights reserved. KEITH. KEITH logo, WALKING FLOOR are registered trademarks of KEITH Mfg. Co. Equipment manufactured by
KEITH Mfg. Co. is protected by numerous patents both domestic and foreign. WALKING FLOOR® is a product and brand of KEITH Mfg. Co.
Keith Foster
Founder
KEITH Mfg. Co.
Mark Foster
President
KEITH Mfg. Co.

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2. Description of the WALKING FLOOR®system
WARNING:
The large forces exerted by the oor when moving can result in damage to equipment
which may result in serious injury or death. Always ensure that this manual has been
read and fully understood by the operator. We advise that the operator keeps this
manual with the vehicle at all times. Always ensure that ‘best practice’ is employed
when using our systems. If in any doubt do NOT use this equipment and seek further
assistance from your company’s safety o󰀩cer.
2.1 Use of the WALKING FLOOR system
The system is built up from a number of separate components. These components are
assembled in such a way that they are only suitable for the conveying purpose described in the sales
contract. Should you wish to convey other materials then please contact the supplier of your trailer.
2.2 Operation of the WALKING FLOOR system
The KEITH®WALKING FLOOR system can be used for loading and unloading most materials.
Moving the load with the system is based on the friction between the load and the oor. The oor
consists of a number of oor slats placed side-by-side (the width of the oor determines the precise
number of slats required).
1 X-DRIVE (3) 3 ON / OFF VALVE 5 SWITCHING VALVE
2 MOUNTING BLOCK 4 LOAD / UNLOAD BLOCK 6 CYLINDER (3)
Three double-acting hydraulic cylinders move the oor slats in a cycle with four phases. The forces exerted by
the cylinders are transferred to the slats by three cross drives. Each cross drive moves 1/3 of the total number
of oor slats.
The oor slats slide over plastic sliding bearings that support both the upper part and the sides of the slat.
Di󰀨erent oor slats, varying in width, surface area and material, have been developed to provide optimum
operation with various types of load. The unloading cycle is composed of the following four phases, the loading
cycle is the opposite. (Figure1.2a and 1.2b).
Figure 1.1: KEITH WALKING FLOOR Workhorse drive-unit

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Cylinder 1 (and slats #1) moves towards the front of the bunker. Because only
1/3 of the oor is moving, whereas 2/3 of the oor is not, the load will not move
(the friction of this major oor area exceeds the friction force caused by the
Walking Floor slats). At the end of its stroke, the cylinder actuates a check valve
that allows the oil ow to start phase 2:
Cylinder 2 (and slats #2) moves towards the front of the bunker; again the load
will not move. At the end of its stroke, the cylinder actuates a second check valve
that allows the oil ow to start phase 3:
KEITHWalkingFloor Workhorse
Oil flow diagram
Fi
g
ure 1.2a
Phase 1:
Phase 2:
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