Storage, putting into the operation and maintenanceStorage, putting into the operation and maintenanceThe plate-link chains are attached to the appertaining size of the variable speed gear-box and to the given control range in the table. In the type mark of the chain, the first digit indicates the basic chain size, the following double-digit number indicates the number of links. In the order of spare chains for variable speed gear-boxes, it is necessary to state the type mark of the variable speed gear-box which is shown on the orientation plate. These plate-link chains may be used even in some variable speed gear-boxes from other producers. In the order of chains for these variable speed gear-boxes, it is necessary to state the type and control range of the variable speed gear-box (e.g. AB 2 x 1:3).
It is a special equipment of the variable speed gear-box which maintains the prescribed tightening of the plate-link chain within prescribed values for the chain service life automatically, without any operator's manipulation.
The "L" model chains will gradually replace the "V", "VZ" chains. The comparing table of models "L" and "V", "VZ".
|
Plate link chains |
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|
V, VZ |
L |
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| V | 025 | A | L | 030 |
| V | 026 | A | L | 031 |
| VZ | 225 | A | L | 231 |
| VZ | 226 | A | L | 232 |
| VZ | 229 | A | L | 236 |
| VZ | 326 | A | L | 329 |
| VZ | 327 | A | L | 330 |
| VZ | 333 | A | L | 337 |
| VZ | 334 | A | L | 338 |
| VZ | 335 | A | L | 339 |
| VZ | 433 | A | L | 436 |
| VZ | 434 | A | L | 437 |
| VZ | 539 | A | L | 543 |
| VZ | 540 | A | L | 544 |
| VZ | 541 | A | L | 545 |
| VZ | 636 | A | L | 640 |
| VZ | 637 | A | L | 641 |
| VZ | 638 | A | L | 642 |
The gear ratio in the drive conversion unit is set to 1:1. The screw 5 must be loosened and the safety plate 3 must be turned till the chain is sufficiently loosened. The closing pin is taken out, the new chain is connected to the old one and by pulling out the old chain, the new ahain is drawn into the drive conversion unit. The old chain must be disconnected and the new one coupled by the closing pin. The tension springs 1, 1' are released by taking them out from the holes in the stop levers 2, 2' and the levers are shifted against the direction of the tension springs up to the stop into the starting position. The safety plate 3 must then be turned, till the stop levers 2, 2' can be moved by 2-3 mm. The drive conversion unit must be turned gently at the same time as the safety plate is turned so as to correctly position the chain between the plates. The safety plate 3 must be secured by the screw 5 against turning, the tension springs 1, 1' must be hung into the holes of the levers 2, 2' and the drive conversion unit is prepared for operation.
Variable speed gear-boxes with automatic final tightener are supplied to the customer after being tested and run-in previously, so that they are serviceable after being filled with oil. If any manipulation in the variable speed gear-box mechanism is made for any reason, it will be necessary to check whether springs 1, 1' are suspended and whether levers 2, 2' are in their initial position before putting the variable speed gear-box into operation. Upon a request of the user, the automatic final tightening device can be mounted even in previously produced variable speed gear-boxes.
Variators are delivered including additional equipment without oil filling. The oil is poured into the horizontal and same vertical variators through venting screw on the main cover. Necessary oil quantity is mentioned on the production label of each variator. The kind of the oil filling for variator and additional equipment is mentioned here in the tabel. Replaceable kind has to be same quality and viscosity according to the enviroment temperature.
| Table of recommended oils | ||
| Enviroment temperature | Kind of oil | Viscosity |
|---|---|---|
| up to 35 °C | OT-K8 | min 11 mm2s-1 at 100 °C |
| max 76 mm2s-1 at 50 °C | ||
| over 35 °C | OT-K12 | min 15 mm2s-1 at 100 °C |
| max 114 mm2s-1 at 50 °C | ||
| over 45 °C | OT-K18 | min 19 mm2s-1 at 100 °C |
| max 175 mm2s-1 at 50 °C | ||
The first oil exchange must be made after the first 500 operating hours, than after every 1000 operating hours. Used oil should be discharged warm. Cleaning is allowed only with oil-base drilling fluid, in no case use lamp-oil (kerosene) or other cleaning agents. Manufacturer's guarantee is valid only under use of recommended oil or equal replacement.
