System Troubleshooting
Contents
1. P Syatem 08 FNA Products Maintenance Guide 1 Adjust the compressed air pressure of the system limiting it to a maximum of 10 bar NOTE you can use the brake pressure meter on the instrument board 2 Check for all cylinder connections to be properly connected to the tubes all the way up to the drive valve 3 Make sure the cylinder rods are not colliding with any component near the cylinder To do so you need to run them to check if there is any interference 4 Make sure the rods are not scratched painted or damaged It may cause leakage after short period 5 Check for the ends to be well fitted and if there isn t excessive slack on the bushings NOTE Excessive slack cause noise and malfunction in the system travel 6 Make sure the compressed air pipe is fitted with filter NOTE The non usage of filter may cause leakage or seizing provoked by dirt in the cylinders 7 Use the lubricating oils recommended by FNA only Troubleshooting Leakage on either side of cylinder Head leaking Tube connections leaking Leakage between rod and packing Cylinder vibration when operating Cylinder can t move e Worn or cut sealing repair parts e Valve leakage e Loosened bolts e Cut sealing rings e Cracked heads e Misfit tubes e Misfit connections or no thread sealing e Worn or cut packing e Scratched painted or damaged rod e Assembly leakage e Lack of pressure e Unaligned assembly e Disconnecte2. THE STROKE CUSHIONING TURN THE SCREW 1 CLOCKWISE TO INCREASE CUSHIONING 2 COUNTERCLOCKWISE TO DECREASE CUSHIONING 10 FNA Products Maintenance Guide STANDARD PNEUMATIC CYLINDER 2 SUMMARIZED STEP BY STEP OPERATION D Disassemble using two 7 16 wrenches 02 Loosen the piston Using 3 4 or 19mm wrench and held by split tool on bench vise Bench vise Split tool MAC a Remove worn out packing B Fit the rod into the head D Fit the assembly into the liner through gasket nut using auxiliary tube a i B A V dD ee D Carry out Head internal ring leakage test poorne L gt a NY 7 11 FNA Products Maintenance Guide PNEUMATIC CYLINDER 2 1 2 WITH DUAL CUSHIONING SUMMARIZED STEP BY STEP OPERATION Loosen the piston held by split tool Disassemble using two 7 16 wrenches on bench vise using special tool or 21mm wrench ae Split tool a Nn Bench vise Use the Or use the rt special tool 21mm wrench Remove rings from the heads Fit the packing to the front head D Bi tari Dadis Fit the assembly to the liner Fit the rod to the head through the gasket nut using the auxiliary tube mis om Head internal ring Carry out leakage test
3. d tubes e Blocked valve e Substitute sealing or packing e Test valve e Retighten bolt nuts e Substitute sealing rings e Substitute heads e Remove the tube and cut tip straight e Apply thread sealing on the connections e Substitute packing e Substitute rod e Repair leakage e Check system pressure e Align rod assembly e Connect tubes e Check valve e NOTE to release cylinder remove tube from the side where the pressure Is 09 FNA Products Maintenance Guide Lubricating OIL CHART Castrol Hyspin AWS32 or RD32 Esso Nuto 32 lorga Pneumat 32 Promax Rock Drill or MA10 Shell Tellus 32 or Tonna 32 Texaco Spindura Oil CC22 or Regal 32 MULTI APLICATION Grease Chart ESSO M ultipurpose Grease Mobil Grease Z Retinax ou Alvania EP Texaco Multifak EP1 Speed ADJUSTMENTS For STANDARD pneumatic cylinders SPEED REGULATING SCREW LOCKNUT A TO ADJUST THE SPEED 1 LOOSEN THE LOCKNUT 2 TURN THE SCREW a CLOCKWISE TO DECREASE b COUNTERCLOCKWISE TO INCREASE 3 TIGHTEN THE LOCKNUT Speed and Cushioning ADJUSTMENTS For pneumatic cylinders with DUAL CUSHIONING SPEED REGULATING SCREW 2 LOCKNUT s 3 STROKE CUSHIONING REGULATING SCREW D A TO ADJUST THE SPEED 1 LOOSEN THE LOCKNUT 2 TURN THE SCREW O a CLOCKWISE TO DECREASE mman f b COUNTERCLOCKWISE TO INCREASE 3 TIGHTEN THE LOCKNUT B TO ADJUST
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