Haulotte Group OPTIMUM 1931 E, Maintenance Book

Page: 61 / 148

61 4000429690 E 11.15 US / GB
General data
Cylinder inspection
MS0003
• If the creep of the cylinder rod is higher than the values indicated in the table below, replace the cylinder.
Type of cylinders Maximum drift authorised due to an internal leak of the cylinder
Lift cylinder arm or boom (Machine
with working heights > 26 m(85 ft4
in))
After 10 mn, creep < 0,2 mm (7874
µ in) After 60 mn, creep < 1 mm (0.039
in)
Outriggers cylinder, Oscillating axle
locking, Lift cylinder arm or boom
(Machine with range-limiting
system)
After 10 mn, creep < 0,5 mm
(0.01196 in) After 60 mn, creep < 2,5 mm (0.098
in)
Lift cylinder arm or boom,
Telescoping, Compensation, ... After 10 mn, creep < 1 mm (0.039
in) After 60 mn, creep < 6 mm (0.236
in)
Steering cylinder
After 10 mn, creep < 1,5 mm (0.059
in) After 60 mn, creep < 9 mm (0.354
in)
These tests must be made in conditions of equivalent temperatures.