Tuchel PROFI 660, Operating Manual

Page: 60 / 65

Cleaning, servicing and maintenance
6-54
6.6.1 Marking of hydraulic hose lines
The marking on the valve (Fig. 6.13) provides
the following information:
(1) Markings of the manufacturer of the
hydraulic hose line (A1HF)
(2) Date of manufacture of the hydraulic hose
line (04/02 = Year / month = Feb. 2004)
(3) Maximum permissible operating pressure
(210 bar)
Fig. 6.13
6.6.2 Servicing intervals
After first 10 operating hours and then every 50 operating
hours.
1. Check all components of the hydraulic system for leaks.
2. If necessary, pull up the screw connections.
Before every start-up:
1. Check the hydraulic hose lines for obvious malfunctions.
2. Remove wear places to hydraulic lines and pipes.
3. Immediately replace worn or damaged hydraulic hose lines.
6.6.3 Inspection criteria for hydraulic hose lines
For your own safety:
Replace hydraulic hose lines immediately you determine one of the
following defects:

Damage to the outer layer down to the insert (e.g. due to rubbing
points, cuts, tears).

Brittleness of the outer layer (recognisable by crack formation of
the hose material).

Unnatural deformations of the hydraulic hose lines, e.g. layer
separation, bubble formations, squashing or kinking places.

Leaks.

Damage, deformation or leaks of the hose equipment. Slight
surface damage is not grounds for replacement.

Movement of the hose out of the equipment.

Corrosion of the valve that can impair the function and strength.

Unprofessionally laid hydraulic hose lines, e.g. bending radii not
adhered to, running over sharp edges.