PROBLEM
Machine does not start
• Trigger clamps
• Machine rotates too slowly
• Motor sticks / jams
• Gearbox makes loud noises
• Tool not able to be clamped
• Reversing
• "drilling / hammering"
clamps
30
PROBABLE CAUSE
• Air not connected
• Rotor rusted by huminity
• Vanes jam (worn)
• Gearbox blocks
• Contaminates in valve
• Operating pressure too low
• Rotor grinds on end plates /
cylinder bushing
• Gear parts jam
• Vanes worn or broken,
broken parts stick between
rotor and
cylinder bushing
• No lubrication - ball bearings
have run dry, rotor has rubbed
on end plates
• Coarse impurities in motor
area jammes between rotor and
cylinder bushing
• Needle cages defective
• Toothing is clattering
• Ball bearing defectiv
• Drill chuk defective
• diameter of tool too small
• Dirt in reversing area
• Steel rollers clamps
SOLUTION
• Connecting and open air line
• Disasseble and clean motor,
check and test
service unit for function
• Disassemble motor, clean it
and replace worn
parts
• Disassemble and clean
gearbox and replace
worn parts
• clean sit
• Increase operating pressure
(on the machine)
to 6 bar
• Disassemble and clean
motor, replace worn
parts
• Disassemble and clean gear,
replace worn or
damaged parts
• Disassemble and clean
motor, replace worn
parts
• Disassemble and clean
motor, replace worn
parts
• Disassemble and clean
motor, replace worn
parts
• Disassemble and clean
gearbox, replace worn
parts
• Change drill chuck
• use bigger tool
• Clean machine
• Disassemble gear and replace
defective parts