Haulotte Group HTL 3210, Руководство оператора

Страница: 193 / 248

193
2420344510 E 11.11 AUS
Telescopic handlers
H
- Lubrication and maintenance
Tightening torque table
7.2.2 - Evaluation of leaks on hydraulic cylinders
These measures must be taken each time an anomaly has been detected in the hydraulic
cylinder during daily inspection and periodic maintenance checks.
Generic Control :
• Position a load equal to the rated capacity on the cage (or platform).
• Raise the loaded attachment using the ground control box. To activate the cylinder to be tested,
proceed as follows :
• Raise Arm hydraulic cylinder : Raise the arm to approximately half full height. The telescopic boom
should be fully extended and in the horizontal position..
• Boom lifting cylinder : Raise the boom approximately half way to its maximum angle.
• Telescopic cylinder : Raise the boom to its maximum angle and telescope approximately 50 cm.
• Measure the distance between a reference point on the attachment and the ground.
• Leave the machine in this condition for 15 mn (minutes).
• Measure the distance between the floor of the cage (or of the platform) and the ground.
• If the difference between two measurements does not exceed 4 cm : the test validates correct
operation.
• If the difference between two measurements exceeds 4 cm, contact HAULOTTE Services® or carry
out the additional tests described below.
Control cylinder by cylinder :
• Position a load equal to the rated capacity on the attachment.
• Perform the movement of the concern cylinder to half of its stroke.
• Attach a comparator to the cylinder concerned :
• Attach the body of the comparator to the cylinder rod.
• The needle of the comparator must be in contact with the end of the casing of the cylinder.
• The target is to measure the creep of the cylinder rod.
Description Torque (JIC) Torque (ORFS)
Hose 1/4" (diameter 6mm) 1,5 daN.m(11,08 lbf.ft) 2,6 daN.m(19,22 lbf.ft)
Hose 3/8" (diameter 10mm) 3,5 daN.m(25,86 lbf.ft) 4,2 daN.m(31,04 lbf.ft)
Hose 1/2" (diameter 12mm) 5 daN.m(36,95 lbf.ft) 5,7 daN.m(42,12 lbf.ft)
Hose 5/8" (diameter 16mm) 8 daN.m(59,12 lbf.ft) 8,5 daN.m(62,82 lbf.ft)
Hose 3/4" (diameter 19) 10 daN.m(73,91 lbf.ft) 12,2 daN.m(90,17 lbf.ft)
• 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.