Replacing Damaged Of Hoses - Haulotte H14TX Maintenance Book

H14TX - HB40 - H16TPX - HB44J
C
- Maintenance

7.3.3.2 - Replacing damaged of hoses

Replace hoses in the following circumstances :
• Tears in the outer casing.
• Cracks in the outer casing.
• Apparent shielding.
• Visible leak in the hose.
• Damage to the outer casing caused by chemical reaction from a foreign source.
To protect personal safety, observe the following conditions when disassembling or reassembling
components :
• Stow and park the machine on level cleared ground(The machine should not be tilted. The boom at
horizontal position).
• Stow the machine completely.
• Place barriers around the perimeter of the work area (risk area = maximum height of the machine).
• Locate the faulty hose/s and their end connection points, to ensure proper machine operation after
intervention.
• Identify and memorise the hose path of the hose to be replaced.
Use an oil collection pan to avoid polluting the environment.
N.B.-:-Slowly undo the hose end fitting to allow the residual hydraulic pressure to dissipate.
• After hose removal, plug the the hose ends and components the ports from which the hose was removed,
to avoid polluting the hydraulic system.
• Check the cleanliness of the hoses and hydraulic components (no metal cutting, rubber, plastic, ...).
• If necessary, drain and clean the whole system (tank included).
• Tighten to the torque indicated when reassembling.
Description
Hose 1/4" (diameter 6mm)
Hose 3/8" (diameter 10mm)
Hose 1/2" (diameter 12mm)
Hose 5/8" (diameter 16mm)
Hose 3/4" (diameter 19)
• Place the machine in its operating configuration.
• To purge the hydraulic system, operate the function/s on the machine that correspond to the hose/s that
has/have been replaced, a few times.
• Check the oil level in the hydraulic oil tank.
• Check the pressure.
4000364740
Tightening torque table
Torque (JIC)
1,5 daN.m(11,08 lbf.ft)
3,5 daN.m(25,86 lbf.ft)
5 daN.m(36,95 lbf.ft)
8 daN.m(59,12 lbf.ft)
10 daN.m(73,91 lbf.ft)
E12.14
Torque (ORFS)
2,6 daN.m(19,22 lbf.ft)
4,2 daN.m(31,04 lbf.ft)
5,7 daN.m(42,12 lbf.ft)
8,5 daN.m(62,82 lbf.ft)
12,2 daN.m(90,17 lbf.ft)
US/GB
A
B
C
D
E
F
G
H
I
55