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36 

1-2020 

 

 

Translation        

11  MALFUNCTIONS AND THEIR REMEDY 

Disturbance 

Cause 

Remedy 

The crosscut saw-blade is heavy 
on power and gets hot. 

1.  The blade is dull. 

2.  Too much resin in the blade. 

1. Sharpen the saw-blade. 

1.  Clean the blade. 

The saw-blade wobbles. 
The crosscut blade starts to wob-
ble after a short period of working. 

1.  Impurities between the flanges. 

2.  Blunt blade and problems with 

stressing. 

3.  Faulty crosscut operation, the log has 

rolled over  

1.  Clean the flanges and the 

blade. 

2.  Sharpen and pre-stress the 

blade 

3.  The blade is damaged, do 

not use. 

Replace the blade. 

The blade whines. 

1.  Too high speed, the max. permissi-

ble roational speed of the saw-shaft 

is 1400 r.p.m. 

2.  Root-crack at the tooth 

1.  Reduce the speed. 

2.  Do not use, replace the 

blade. 

Saw-blade is rotating in the wrong 
direction (EM) 

1.  Wrong phase-order. 

1.  Switch the phase order of 

the appliance inlet. 

The electric motor does not start.  1.  Emergency stop button has been de-

pressed. 

2.  Makes loud noise, but does not start. 

3.  The power supply cable defect. 

 

1.  Reset the emergency stop. 

2.  The fuse has blown, re-

place it. 

3.  Replace the cable. 

 

The motor stops several times 
and the thermo-relay trips. 

1.  The blade is dull. 

2.  The connection cable too long or un-

dersized 

1.  Sharpen the saw-blade. 

2.

 

Get a properly sized cable.  

Whining sound during the sawing 
operation and the revolutions 
drop. 

1.  V-belts are worn. 

 

1.  Change the belts. 

Blade does not come down. 
 

Protective cover for the chute is open. 

Close the cover for the splitting 
chute. 

Protective cover for the chute can-
not be opened. 
 

Crosscut blade not in its upper position.  Start the machine and lift the 

blade using the joystick-valve. 

Splitting cannot be launched man-
ually. 

Protective cover for the chute is open. 

Close the cover. 

Summary of Contents for C900.2

Page 1: ...ANUAL C900 2 Powered by tractor Powered by electric motor SERIAL NUMBER _______________________ YEAR OF MANUFACTURE _______________________ PALAX Lahdentie 9 FI 61400 Ylistaro FINLAND Tel 358 6 4745100 www palax fi ...

Page 2: ...he cutting length Fig 6 15 3 Operation of the firewood processor powered by different power sources 15 3 1 Testing the machine 15 3 2 Powered by a tractor 15 3 3 Suitable revolutions range for the PTO shaft 16 3 4 Disengagement lever for transmission Fig 7 16 3 5 Required measures in an emergency situation 16 3 6 Starting under cold conditions machine powered by a tractor 17 3 7 Electric drive sta...

Page 3: ...9 2 Tightening the V belts 28 9 3 Replacement of the V belts centre shaft saw blade shaft 28 9 4 Sharpening the blade hard metal blade 28 9 5 Setting the saw blade hard metal blade 28 9 6 Spare blade 28 9 7 Replacement of V belts angular gear centre shaft 28 9 8 Tightening the in feed conveyor belt Figs 18 and 19 29 9 9 Replacing the in feed conveyor belt 30 9 10 Direction of rotation of the belt ...

Page 4: ...red machine is expected to master the use of PTO shaft transmission Before the installation and operation the operator of the machine must become thoroughly familiar with the contents of the manual The operator is also obliged to gain familiarity with the operating controls of the machine and the emergency stop mechanism For more infor mation about our products please visit our website at www pala...

Page 5: ...at the machine meets the requirements of the Government Decree 12 6 2008 400 on safety of machinery through which the Machine Directive 2006 42 EC has been put into effect and that during the manufacturing process the following harmo nized standards have been applied SFS HANDBOOK 93 series SFS EN 349 1 A1 SFS EN 609 1 A1 SFS EN 618 SFS EN 620 SFS EN 847 1 A1 SFS EN 847 2 A1 SFS EN 847 3 SFS EN 953...

Page 6: ...oduction of firewood from round timber Use of the machine for any other purposes is prohibited Maximum size of the wood For cutting the maximum diameter of the tree is about 37 cm The maximum length of the log is 4 5 m When handling long trees we recommend using a specific log lifting deck with rollers or hydraulic feed 1 4 Warning signs ...

Page 7: ...protective net for the splitting chute cannot be opened un less the crosscut saw blade is in its upper position Lubrication point Emergency stop SM Direction of rotation of the blade PTO shaft Interrupting the splitting Launch of splitting Safe dis tance from the conveyor Revolutions range of the PTO shaft Lifting point of the machine Beware of PTO shaft Read the User Man ual for the machine ...

Page 8: ...er and year of manufacture Nameplate is at the end of the machine Nameplates on the electric drive 3 phase motor Voltage 230 400 V or 400 600 V may vary depending on the country Beware of rotating blade Stay away from moving parts of the machine Disconnect the machine from the electric sup ply before taking to any service measures The machine may only be operated by one person Stopping the func ti...

Page 9: ...hine may only be operated by one person The machine must be equipped with additional lights for transportation on public roads The danger zone around the conveyor is 5 metres to the sides and to the rear Lift and lock the in feed deck and the discharge conveyor in the transport position for transportation The three point linkage of the tractor is of size category two If using a tractor larger in s...

Page 10: ...sscut deck and the in feed roller danger of rolling over Exercise particular caution when cutting knotty or crooked logs because as a result of faulty cutting the log might roll over or twist the saw blade with enough force to break it Keep the working space clean and clear of foreign objects Always stop the machine and disconnect the power supply cable or the PTO shaft be fore servicing Only cut ...

Page 11: ...hine indoors owing to the risk of dust generation or the danger of exhaust gases 1 11 Terms of warranty The warranty period runs for 12 months from the date of purchase The warranty covers Parts which have been damaged during normal operation of the machine due to any defects in material or workmanship The reasonable repair cost as set forth in the agreement between the buyer and the manufacturer ...

Page 12: ...avoid damage during transportation the machine is delivered partly disman tled so that all the protruding levers and the hitching parts of a tractor powered ma chine and part of the protective covers have been removed and packed separately The extension table for the in feed conveyor and the loading conveyor are in the transport position The angular gear is filled with transmission oil 2 3 Accepta...

Page 13: ...C in the frame Re con nect the rubber strap Fig 2 2 6 Bringing the conveyor into the work position Figs 3 and 4 1 Remove the locking pins A for the conveyor Fig 3 and 4 2 Release the locks B 3 Unwind the winch wire a few rounds 4 Pull out the conveyor and leave it supported by the winch rope 5 Lower the conveyor to the ground using the winch 6 Pull open lock A Fig 5 7 Swing down the top of the con...

Page 14: ...to the ground and connect the support bar B for the conveyor chain Fig 5 2 Pull lock A Fig 5 open and lift up the conveyor top 3 Ensure that lock A is properly locked 4 Raise the conveyor using the winch 5 Tighten the winch wire lightly in order to prevent it uncoiling from the spool 6 Lock the conveyor to the transport support using the lock the chain and the pin Fig 5 Fig 6 ...

Page 15: ...draulic system and the controls for shut ting off are operational Test that the safety limit switches are operating when the cover is opened Once the cover is open the hydraulic valves cannot be operated with the exception of the fire wood conveyor If you observe even a minor malfunction in the operation of the machine find out the cause and repair it The machine must always be tested before start...

Page 16: ...ging the transmission be tween the angular gear and the machine to make the hydraulic pumps and the crosscut saw blade stop In the event of emergency pull the lever A downward Thus will the lock up bolt B lock the lever and the V belts will remain slack Fig 7 NOTE Only use the lever in an emergency because the V belts which slightly chafe the angle drive pulley may wear too quickly 3 5 Required me...

Page 17: ...ponds to the arrow on the blade cover To check the direction of rotation run the motor for a short while and then stop it sud denly The direction of rotation is reversed using the phase switch in the appliance inlet The machine may only be connected to a power supply equipped with a fault current switch of 30 mA The machine must be equipped with a 5 pole extension cord L1 L2 L3 N ja PE to operate ...

Page 18: ...g 8 Push down the emergency stop button D Turn the pushbutton clockwise to release it 3 10 The machine is equipped with a system to prevent simultaneous op eration in two modes Fig 9 When the cover plate B is turned down it is possible to connect the extension cord When the cover is raised up it is possible to connect the PTO shaft Suspension hook A for the PTO shaft ...

Page 19: ...t for the splitting chute facilitates cold starting Doing it this way requires the least power at the start up stage It also pays to pull down the disengagement lever for the transmission for a cold start Then only the angular gear will start running and the gearbox oil will warm up After this stop the machine release the disengagement lever for the transmission and restart the machine 3 12 Electr...

Page 20: ...activated and the operation of the cross cut saw blade the pusher the wood length adjuster Palax Optimi and the adjustment of the splitting wedge are impeded 4 2 Joystick valve Fig 10 Push the joystick forward and move it in direction B D the conveyor feeds the log against the log stop Push the joystick forward and move it in direction B C the conveyor reverses Pull the joystick back in direction ...

Page 21: ... wedge Pull it back the splitting wedge lowers Push it forward the splitting wedge raises 4 Manual start lever for the splitting stroke Press the lever to the right to launch the splitting Press the lever to the left to stop the splitting and to reverse the cylinder 5 Adjustment of the cutting length Palax Optimi Use this lever to adjust the cutting length to that desired The adjusted value can be...

Page 22: ...harge conveyor speed Fig 11B Speed control valve is located on the top of the discharge conveyor hydraulic motor Adjust the out feed conveyor speed by turning screw 2 The locking knob 1 locks the adjusting screw to the desired position Fig 11B ...

Page 23: ...he log During the crosscut operation make sure that the log is always supported on the roller Make sure that the log stays firmly under the clamp during sawing to keep it reliably in position on the deck This is particularly important when sawing crooked trees and generally when the last piece is being cut and the log is short and lightweight Cut very crooked trees where they bend Doing so makes t...

Page 24: ...ing sound is loud and cracking the blade is proceeding too fast and the saw dust grooves get clogged Check the rotational speed proceeding speed of the cross cut blade and sharpness of the blade If the tree gets stuck in the blade as a result of faulty cutting stop the machine immedi ately using the emergency stop button on the electrically powered machines or the dis engagement lever for transmis...

Page 25: ... 4 6 or 8 way wedge may still be too large in size Proceeding in the following way will help you to split the wood safely into even smaller pieces 1 Open the cover 2 Place the logs to be split into the splitting chute E g one on top of the other The pieces of wood will stay in this position if you hit them carefully against the wedge 3 Close the cover and start the splitting using the lever for ma...

Page 26: ...eeds up even the splitting of thick logs as the approach stroke against the wedge is performed at high speed 8 3 Splitting wedges Standard wedge The Palax C900 2 model is equipped as standard with a 2 4 wedge for splitting the wood in 2 or 4 ways Accessories for the Palax C900 2 model X Aim automatic height adjustment of the splitting wedge Hydraulic rear in feed roller Hydraulic oil cooler Sawdus...

Page 27: ...easures 9 1 Removal and change of the crosscut blade Figs 13 and 14 Figs 13 and 14 The crosscut saw blade must conform to the standard EN 847 1 A1 1 Loosen the attachment screws for the protective cover a 13 mm wrench 2 Open the protective covers 3 Loosen the blade bolt using the special wrench delivered with the machine Right hand thread a 36 mm wrench 4 Carefully clean the surfaces of the flange...

Page 28: ... saw blade hard metal blade The hard metal blade does not normally show any tendency for tension fault but espe cially when a blunt saw blade is used for cutting and it gets very hot tension faults can occur Leave the prestressing of the hard metal blade to a professional 9 6 Spare blade If you are processing a lot of firewood we recommend that you obtain a spare blade 9 7 Replacement of V belts a...

Page 29: ... infeed deck table extension which can be used for tightening the belt As you tighten the belt make sure that the belt travels in the centre of the roller Ensure that the scraper C is as close to the roller as possible The scraper is intended for always keeping the roller clean and ensuring that the belt runs straight Fig 18 Fig 19 ...

Page 30: ...ection of rotation of the belt Check the correct direction of rotation of the belt in accordance with the arrow while replacing the belt During the infeed operation the belt must run in the direction of the arrow The belt joint may break if the belt is installed in the wrong way Check the belt for tightness at regular intervals The drive roller must not slip 9 11 Changing the oil in the angular ge...

Page 31: ... a less viscous hydraulic oil be used e g ISO VG 22S multi grade oil or synthetic hydraulic fluid because a machine with electric drive works at full speed right from the start of operation Observe particular cleanliness during the oil change because the flawless operation of the machine is highly dependent on the purity of the oil 9 13 Lubricating the machine refer to the Maintenance Schedule Bla...

Page 32: ...le of the end plate of the detent end of the valve lubricant can be sprayed onto the moving parts of the valve detent Only use oil that does not congeal in frost The easiest way is to use a spray bottle with a nozzle and pipe 1 Insert the spray pipe in the hole and press 2 3 times for about 1 second at a time 2 The oil spreads smoothly on the moving parts of the detent end Lubricating the spool sh...

Page 33: ...cover off This can also make the springs and balls of the detent fly off In connection with assembly of the detent end apply a small amount of Vaseline to holes A of the detent This ensures the balls stay properly in position during assembly Make sure that parts D and E line up in the right way as shown in the picture and that the condensed water drain holes F always point downwards A B C D E F Fi...

Page 34: ...king session The conveyor can also be washed with a high pressure washer The chain must be lu bricated after washing 9 18 Washing the machine Wash the machine occasionally with a high pressure cleaner This is especially im portant if the machine is left standing for a longer period of time Lubricate the machine after washing Note Do not direct the water jet onto electric devices or bearings 9 19 S...

Page 35: ...ange 2 Change X X X Volume 80 l E g Esso Univis 32 Neste Hydrauli 32 Oil filter 1 Change 2 Change X X FIO 100 3 Blade shaft bear ings Lubrication X X Ball bearing lubricant Valve Lubrication X Lubrication oil spray All levers Lubrication X Lubrication oil V belts Angular gear Blade shaft Check and tighten as required SPA 1557 SPA 1457 Crosscut saw blade Sharpen as required Machine Cleaning X Elect...

Page 36: ...tating in the wrong direction EM 1 Wrong phase order 1 Switch the phase order of the appliance inlet The electric motor does not start 1 Emergency stop button has been de pressed 2 Makes loud noise but does not start 3 The power supply cable defect 1 Reset the emergency stop 2 The fuse has blown re place it 3 Replace the cable The motor stops several times and the thermo relay trips 1 The blade is...

Page 37: ...37 1 2020 Translation 12 ELECTRIC DIAGRAMS ...

Page 38: ...38 1 2020 Translation ...

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