Troubleshooting
6 Troubleshooting
Clamping force block chuck jaws will not move
Possible cause
Solution(s)
Air supply interrupted
Check air supply
System pressure too low
Increase system pressure according to clamping
system technical specifications
Connections mixed up
Check connections and functions and connect
properly
Unused air connections not sealed
Seal front or base connections using accessories
(included in scope of delivery)
Active air connections sealed
Remove set-screws from sealed air connections
Piston will not move
Possible cause
Solution(s)
Air is not oiled
Check maintenance unit, perform maintenance
work. Place the oiler closer to the clamping
system; adjust the necessary oil quantity
Chuck piston screw broken (overload)
Send clamping system to SCHUNK for repairs or
disassemble clamping system and repair using
original SCHUNK spare parts
Piston rod or piston rod screw
connection broken (overload)
Send clamping system to SCHUNK for repairs or
disassemble clamping system and repair using
original SCHUNK spare parts
Active air connections sealed
Remove set-screws from sealed air connections
Clamping force block does not complete stroke
Possible cause
Solution(s)
Chips or dirt between covering strip
and base jaws
Unscrew the covering strip (item 8) and remove
chips and dirt
Clamping force getting weaker
Possible cause
Solution(s)
Clamping force block not sealed tightly Check connection and seal screws; reseal or
replace
Seals damaged
Disassemble clamping force block
and replace all the seals (see sealing kit
lists
)
Inadequate lubrication
Lubricate the lubrication nipples with LP
410
27
01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176