Snorkel PAM26-sn000001+ - Manual (Page 27)

December 2008 Instruction Manual
Page21
chain is to stretch the total length of the chain. Measure the stretching rate of the used
transmission chain by eye every three months. The mast connected to the elongated
chain would be lower in position so that the top of each mast is obviously uneven in stored
position. It may lead to damage on guide roller if the problem is serious.
Note: Every link of the transmission chain is associated with three links of the masts.
The following sketch shows the connection of the masts and the transmission chain.
1) When regulating the length of the chain, please select the mast that needs increasing
its height. As shown in the sketch, regulating the nut 5 tightly makes the last link of the
mast 8 move upwards. The dual nuts 5 should be connected with each other tightly
after regulating the length of the chain.
2) The same link of the mast is pulled by two chains and endures the raised weight loads
at the same time. If one of the chains loses efficacy, the other will play an important
safety role, therefore, try to make both chains as loose or tight as consistent each other
when regulating the length of the chain. The methods of judge at site are as follows:
Press the two chains by hands to compare their tautness under lifting status.
1-next link of the mast;
2-the middle link of the mast;
3-the transmission chain;
4-adjusting bolt;
5-adjusting lock nut;
6-chainwheel;
7-chainwheel shaft;
8-the last link of the mast