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15 

 

 

3. 

Maintenance and troubleshooting 

 

 

 

 

 

 
The forward tipping box rotator must be placed in its lowest position when maintenance or repairs are carried out. 
Prevent the unintended tipping and/or raising of the rotator during maintenance activities by switching off the 
vehicle's engine and removing the ignition key. An additional precaution would be to disconnect the hydraulic hoses. 
 

3.1 

Preventive maintenance and lubrication 

 

After the first 8 working hours: 

-

 

Check the connections and turnbuckles of the hydraulic hoses. 

-

 

Tighten all bolts. 

 

 

 

 

 

 

 

 

 

 

3.2 

Troubleshooting 

 

Forward tipping box rotator type 

Problem 

Solution 

 

 

 

K90 with hydraulic limit switch. 

The upper clamp fails to rise when operated.. 

See section 3.2.1. 

Table 3.2.1-Troubleshooting 

 

 

 

N.B. 
Please read the instruction manual prior to any maintenance to the machine. 
Turn off the engine and remove the key from the ignition while maintenance is 
carried out on the machine!

 

 

 

 

This sticker shows the position of a grease nipple on the machine. Lubricate the machine after every 10 
working hours. Recommended lubricants include SAE 30 oil and Grade 2 lithium-based grease. 
 
 

 

 

Regularly check the hydraulic system for any leaks.  Never try and search for leaks or stop a leak by hand. 
Liquid under high pressure can easily penetrate skin and clothing, and may cause serious injuries. Replace 
any damaged hydraulic hoses to prevent them from breaking and any accidents as a result.

 

 

Regularly check the oil level of the hydraulic system of your forklift truck / tractor.

 

 

Summary of Contents for K90 Series

Page 1: ...Manual and safety instructions K90 Forward tipping box rotator GB K90...

Page 2: ......

Page 3: ...9 2 1 GENERAL TECHNICAL DATA 9 2 2 K90 10 2 2 1 Parts list 10 2 2 2 Commissioning the K90 box rotator 11 2 3 PROVISIONS FOR CONNECTING K90 13 2 4 REPLACEMENT COMPONENTS 14 3 MAINTENANCE AND TROUBLESHO...

Page 4: ...nges and improvements deemed necessary without prior notice Please read the manual thoroughly and observe the safety procedures before putting the unit into operation Contact your dealer for any furth...

Page 5: ...utions The following safety instructions apply to all types of WIFO forward tipping box rotators No distinction is made with regard to the type of lifting vehicle used This symbol is used for all impo...

Page 6: ...idth so that they will not damage the box Raise the upper clamp using the clamping cylinder before picking up the box with the box rotator Distribute the load as evenly as possible over the forks Keep...

Page 7: ...otator is being taken off and stored away it is important to use the support legs Always park the box rotator on a level and solid surface Ensure that the operating levers for tipping and clamping can...

Page 8: ...e well informed about the various safety stickers on the machine Be aware of the hazards they warn you to look out for Replace any loose illegible or missing stickers Figure 1 2 1 Location of safety s...

Page 9: ...e supplied ex works with a range of attachments for various telehandlers When ordering please specify what you intend to attach the box rotator to If available they can be fitted in the factory and wi...

Page 10: ...bserve the local regulations in terms of accident prevention safety traffic and transport 6 Only trained personnel with knowledge of the possible hazards have permission to work with on the machine 7...

Page 11: ...kg 2500 kg 2500 kg 2500 kg Weight 845 kg 870 kg 895 kg 920 kg Working pressure 18 Mpa 23 Mpa 180 bar 230 bar 18 Mpa 23 Mpa 180 bar 230 bar 18 Mpa 23 Mpa 180 bar 230 bar 18 Mpa 23 Mpa 180 bar 230 bar...

Page 12: ...ng plate 80x17 L10 26 Clamping frame connector 9 Rubber buffer 200x52 L60 27 Locking ring 40x11 L8 10 Hydraulic 3 way valve 3 8 28 Clamping frame 11 Pin for end stop 16 29 Top stop 12 Clamping cylinde...

Page 13: ...make sure the box rotator sits securely in the centre in front of the fork carrier so it is unable to slide sideways 9 Check to make sure the hydraulic hoses are clean before connecting them to the r...

Page 14: ...ed This can be adjusted as follows Remove the tube locking pin from the top stop Adjust the top stop to the correct net box height 5 cm Secure the top stop with the tube locking pin 2 The K90 forward...

Page 15: ...With sequence valves 2 pieces Number Description Note 4 hose connection 1 4 hose connection Electrically operated model 2 Electro hydraulic valve 3 Electro hydraulic valve coil 4 Switch on forklift tr...

Page 16: ...eal kit DW60 35 350 7792841 Clamping cylinder seal kit DW50 30 330 7792823 Hydraulic switch 429059 Balancing valve DW 429058 Sequence valve 3 8 429063 Vibration isolator 100x43 429034 Rubber buffer 20...

Page 17: ...er clamp fails to rise when operated See section 3 2 1 Table 3 2 1 Troubleshooting N B Please read the instruction manual prior to any maintenance to the machine Turn off the engine and remove the key...

Page 18: ...e 1 Check that the tipping frame is horizontal and resting on its bump rubbers 2 Loosen the adjusting tube bolt and locknut See figure 3 2 1 3 Bring the stop to the correct height so that it comes up...

Page 19: ...by operating the hydraulic function of the forklift tractor Always stay clear of the rotator while doing this to avoid accidentally getting trapped 3 2 3 The rotator rotates too slowly only with sequ...

Page 20: ...gen van de Machinerichtlijn Richtlijn 2006 42 EG zoals laatstelijk gewijzigd en de nationale wetgeving ter uitvoering van deze richtlijn Is in conformity with the provisions of the Machine Directive D...

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