Check Hose Lines; Top Up Oil; Checking Friction Linings Of Torque­limiting Backstop - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

10.2.10 Check hose lines

Even when adequately stored and subjected to permissible loads, hoses and hose lines are subject to a
natural ageing process. This limits their period of use.
The period of use of the hose lines must not exceed 6 years from the manufacturing
date stamped on them.
The period of use can be determined using available test and empirical values, taking into account the
conditions of use.
The operator of the system must ensure that hose lines are replaced at suitable intervals of
time, even if no defects which may affect their safe operation are identifiable on them.
Hose lines must be inspected for safe working condition by an expert before the plant is first
put into operation and thereafter at least once a year.
If during inspections faults are found, these must be rectified immediately or suitable
countermeasures taken.

10.2.11 Top up oil

The instructions in item 7.1.2 must be observed!
Always top up with the same type of oil as already used in the unit (see also item 10.2.2).
10.2.12 Checking friction linings of torque­limiting backstop
As a rule, the backstop operates without wear. The only wear that might occur would be on the
friction linings, especially in case of frequent slide operations.
Fig. 63: Torque­limiting backstop
1 Backstop outer ring
2 Backstop inner ring
3 Cage with sprags
4 Shaft (adapter flange)
To safeguard the set slide torque, the lead screws of the compression springs are secured with
locking wire. The warranty will expire if the locking wire for the screws is missing or has been
damaged.
For safety reasons, it is absolutely prohibited to change the slipping torque.
After having stopped the motor, there is a danger that the load is not safely held in its
position and can run in reverse direction at high speed.
6
4
3
7
x 0.8 mm
5 Locking wire
6 Lead screw with compression spring
7 Friction lining
BA 5033 EN 03/2011
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5
2
1