STAS -
Instructions for use moving floor
34
F. PREVENTIVE MAINTENANCE
Preventive maintenance on the trailer may be divided into the following sections:
•
Mechanical maintenance on the trailer (see § 1).
•
Maintenance on the bodywork of the trailer (see § 2).
•
Maintenance on the moving floor system (see § 3).
1. MECHANICAL MAINTENANCE
1.1. VISUAL INSPECTION
1.2. TYRES
A general visual inspection of the trailer should be carried out at regular intervals and any damaged or faulty compo-
nents must be replaced or repaired immediately.
Visually check the tyre pressures before each trip. Tyre pressures should be measured weekly and adjusted if required.
The table below shows the recommended tyre pressure and rims for the most common tyre sizes. If the trailer is fitted
with a different tyre size, the correct tyre pressure may be obtained from the manufacturer.
Tyre size
Rim width (advice)
Recommended tyre pressure (bar)
425/55 R19.5
13.00 x 19.5
9
445/45 R19.5
14.00 x 19.5
9
445/65 R19.5
14.00 x 19.5
8.5
11 x 22.5
7.50 x 22.5
8
12 x 22.5
8.25 x 22.5
8.5
13 x 22.5
9.00 x 22.5
8.5
365/80 R20
10.00 x 20
9
385/65 R22.5
11.75 x 22.5
9
425/65 R22.5
13.00 x 22.5
8.5
445/65 R22.5
14.00 x 22.5
9
Check whether the tyres of the trailer still contain the regulation grooves on a regular basis. Replace the tyres in time.
Inspecting the tyres is extremely important for your safety and the safety of others.
1.3. TIGHTENING TORQUES FOR BOLTS
All bolts and nuts should be inspected on a monthly basis. Particular attention should be paid to the bolts and nuts in the
floor system, the fifth wheel rubbing plate and the axle attachment to the chassis.
The following table indicates the tightening torques for normal construction bolts according to class 8.8 and class 10.9 (as
per DIN ISO 898 – Part 1).
Size
Tightening torque (Nm)
Size
Tightening torque (Nm)
Class 8.8
Class 10.9
Class 8.8
Class 10.9
M5
5.5
8.1
M20
425
610
M6
9.6
14
M20x1.5
475
680
M8
23
34
M22
580
820
M8x1
25
37
M22x1.5
630
900
M10
46
67
M24
730
1050
M10x1.25
49
71
M24x2
800
1150
M12
79
115
M27
1100
1550
M12x1.25
83
120
M27x2
1150
1650
M14
125
185
M30
1400
2000
M14x1.5
135
200
M30x2
1500
2150
M16
195
295
M36
2450
3500
M16x1.5
210
310
M36x2
2650
3780
M18
300
430
M42
3930
5600
M18x1.5
340
485
M42x2
4280
6050
The tightening torques listed are applicable up to M16x1.5 for bolts with galvanized surfaces and a surface rough-
ness of µ=0,125. On larger diameters, the surface roughness is µ=0,140.
The previously stated tightening torques do NOT apply:
•
to wheel nuts,
•
when lubricants such as MOS2 are used.
Please also refer to the additional documentation supplied with the trailer for
tightening torques relating to the floor system, axles, brakes and suspension.
