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Make sure the control panel is locked in place. All guards and screens fitted to the machine
must be in place and intact. Further guards might be required to protect third party property.

Position yourself near the machine at the main control panel and atatch the safety strap as
shown  making  sure  the  key  is  plugged  into  the  holder.  Safety  helmet,  visor  and  ear
defenders  must  be  worn  along  with  steel  toe  cap  boots,  heavy  full  length  trousers  and
gloves. When the cord is pulled out accidentally or deliberately the cutter wheel will stop.
Use guards to protect property, vehicles and people from flying debris.
Turn the cutter selection button clockwise one step. The cutter wheel will start rotating. Use
the manual lever to increase the engine revs
Use the cutter slew lever to carefully and slowly slew the cutter across the front of the tree
stump taking the first cut. If the machine becomes excessively noisy or an excess of vibration
or obvious resistance to cutting is experienced stop cutting immediately and back the cutter
away from the tree stump. Turn off the engine and investigate the cause.
The slew speed of the cutter can be adjusted by turning the slew speed control knob.
Turning the knob clockwise will reduce slew speed.
Turning the knob counter clockwise will increase slew speed.
After completion of the first cut, i.e when the cutter
has passed completely across the tree stump and is clear of the opposite side of the stump,
the arm can be lowered a little by pushing the lift/lower lever forward. The machine is now
ready for the return cut in the opposite direction.

Repeat this until the desired depth is achieved. Then lift the arm to a height above the stump,
inch forward using the track levers and start the whole process again.

Move machine away from stump with cutter wheel out of gear

1.     

Control panel latch

2.     

Safety key holder

3.     

Safety key strap

4.     

Left track lever

5.     

Right track lever

6.     

Lift lower lever

7.     

Variable width lever

8.     

Slew lever

9.     

Control panel

10.

Fuel filler cap

11.

Ignition key

12.

Cutter engage switch

13.

Emergency stop switch

14.

Throttle lever

15. Lifting Eye

 

15

Summary of Contents for P28RX

Page 1: ...1 Safety Operating Service Instructions Tracked Tree Stump Grinders Updated 2019 ENGLISH POWERFUL COMPACT This manual relates to the operation and maintenance of the P28X P28RX P38X P38RX...

Page 2: ...2...

Page 3: ...perating the tree stump grinder Take the time to familiarise yourself with the machine controls before attempting to operate it and slowly build up to operating the machine at its full capability Fail...

Page 4: ...tening or they will slip too much Excessive slipping will wear the belts and the pulleys out prematurely Please follow the Belt Tightening procedures on page Engine The engine can be run in at full RP...

Page 5: ...B 1000mm HEIGHT A 1300mm WEIGHT gross 1000 Kg CUTTING DEPTH 460mm CUTTING HEIGHT 800mm SLEW 1370mm CUTTERS on cutting wheel 6 x 4 CUTTER WHEEL DIA 500mm SERIAL NUMBERS Serial numbers relating to the...

Page 6: ...not strictly observed could result in damage to or destruction of equipment IMPORTANT This message is used in situations where failure to take due measures can shorten the working life of the machine...

Page 7: ...an get extremely hot from operation To prevent severe burns do not touch these areas while the engine is running or immediately after it is turned off Never operate the engine with heat shields or gua...

Page 8: ...14 dB A have been recorded at the working position VIBRATION As required by the supply of Machinery Safety Regulations 1992 this unit has been designed to reduce the risk from vibration and noise to t...

Page 9: ...climb slopes of up to 20 Operating on slopes is undertaken at users risk Before trying to go up a slope make sure that the engine and the hydraulic system has reached normal operating temperature This...

Page 10: ...re cutter guards are fitted secure and intact With the engine switched off visually inspect the cutter wheel and ensure that there is no obvious damage to the cutting teeth that all teeth retaining bo...

Page 11: ...e SPEED When being driven the stump grinder can move and turn with surprising speed Be aware of the size shape and weight of the stump grinder when operating the track control levers This is particula...

Page 12: ...ure the slope of the ramp is less than 20 Before loading the machine be sure to thoroughly clean the ramp and the bed Ramps or beds that are dirty with oil mud or ice are slippery and dangerous SLOPES...

Page 13: ...bolts are fitted and tight Ensure that cutter wheel is not touching or is obstructed by anything and that there are no operators personnel members of the public or animals in close proximity to the ma...

Page 14: ...r without the cutter guards engine covers and access covers securely in place Failure to do so may result in personal injury or loss of life Start the stump grinder following the correct starting proc...

Page 15: ...utter Pushing the lever forwards will lower the cutter The possible depth of cut will vary based on the type of tree stump and its condition I ie hardwood or softwood wet or dry fresh cut or old and d...

Page 16: ...esistance to cutting is experienced stop cutting immediately and back the cutter away from the tree stump Turn off the engine and investigate the cause The slew speed of the cutter can be adjusted by...

Page 17: ...between the cutter wheel and its cowl either slowing or stopping the cutter This will be accompanied by the engine starting to labour and excessive noise from the hydraulic system If this happens proc...

Page 18: ...rs must be in their zero neutral positions for a start up to be made If any lever is not in its zero neutral position during start up the control unit will blink and beep the same number of times as t...

Page 19: ...ger On the right hand side of the receiver is a switch plug socket and some LED lights The switch should remain in the radio control position at all time which is towards the door The plug 2 is for at...

Page 20: ...ine refer to the appropriate COSHH sheets from your suppliers GENERAL CLEANING Keep the stump grinder and engine clear from excessive dust wood chippings and debris build up especially around the fuel...

Page 21: ...ar of the engine underneath the battery The engine will gradually pull backwards tightening the belts 4 When the belts are sufficiently tight tighten the 4 30mm nuts up to secure the base plate Hydrau...

Page 22: ...machine make sure nothing is working loose Check tracks for correct tensioning and damage Refer to engine manual for cleaning of air cooling system Check and adjust if necessary belt tightness from l...

Page 23: ...if required ensuring area around filler cap is clean Refit fuel cap CHANGING FUEL FILTER Change inline fuel filter by loosening clips removing and replacing new filter Be sure to insert the new filte...

Page 24: ...overfill CHANGING ENGINE OIL FILTER See engine manual After draining oil undo filter near battery Replace filter with new and tighten Refill with oil to level on dip stick CHANGING HYDRAULIC OIL The...

Page 25: ...ght as this could be the first signs of bearing failure ELECTRICAL There is a main fuse located in the control box near the emergency stop button This controls the main 12 V dc supply to the complete...

Page 26: ...is recommended when the Predator 26 is first used Grind as normal for approximately 5 minutes then disengage the cutter wheel and leave for at least 5 minute to cool Repeat up to 5 times Maintenance T...

Page 27: ...ese are damaged replace Congratulations for purchasing your Multi Tip stump grinding cutting system Please look after this system as set out below to insure a long and trouble free life span of the wh...

Page 28: ...ure all surfaces are clean and free from dirt Re fit the threaded insert then the new tooth and keeper block together Tap the front of the keeper block until it is located Insert the bolt and wind up...

Page 29: ...ses Use recommended lubricants Do not mix different brands of lubricants Use only original spare parts Keep undercarriage widening cylinder and track stretcher grease nipples clean Intervals for perio...

Page 30: ...then slowly rotate the track 62 Gearbox drain plug 63 Gearbox filler plug 64 Gearbox 65 Drive Sprocket 66 Rubber track 67 Roller Tighten the valve 74 by turning clockwise till tight Clean all traces...

Page 31: ...ted before performing the track installation operation Mesh the track links in the sprocket and place the other end of the track on the front idler wheel Rotate the driving gear in reverse slowly and...

Page 32: ...ted above Other causes include Improper contact between track and sprocket Rotation of internal rollers Operation on sandy terrain MAINTENANCE OF DRIVE GEARED MOTORS CHECKING THE OIL LEVEL IN THE REDU...

Page 33: ...TEM 11 14M PULLEY 142 6 PCD 32 TEETH 1 P 26 PU 001 STOCK ITEM P 26 BS 001 STOCK ITEM 1 TAPER LOCK BUSH 50 12 13 M6 x 16 LG SOC SET GRUB SCREW 3 B M6 16CP 8 8 STOCK ITEM 4 ITEM 5 USING KEY STEEL CUT AN...

Page 34: ...34 P28 38 Turn Table Pivot Assembly...

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Page 43: ...to the manufacturer for inspection prior to processing a warranty claim It is the customer s responsibility to deliver the machine to a Predator dealer s facility unless other arrangements have been a...

Page 44: ...44 Kiln Lane Binfield Heath Nr Henley on Thames Oxon RG9 4EN ENGLAND Tel 44 0 118 940 1740 Fax 44 0 118 940 4739...

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