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Mast Seres - Servce & Parts Manual
May 2021
Secton 10 - Mantenance
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.
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.
Make sure the chock is in place during maintenance����� Refer to page 8�����
When the work platform of a Mast machine needs to be raised for
routine servicing purposes, a captive chock shall be used to enable the
extending structure to be held in the required position to prevent the
work platform from falling down�����
6 - Clean and Lubricate the Columns
Tools will be required to perform this procedure.
New parts will be required to perform this procedure.
Dealer service will be required to perform this procedure.
Use calcium sulfonate grease like CRC SL 35615 or equivalent.
Clean and properly lubricated columns are essential to good machine performance and safe
operation. Extremely dirty conditions may require that the columns be cleaned and lubricated more
often.
Raise the platform to the maximum height.
Visually inspect the inner and outer channels of the columns for debris or foreign material. If
necessary, use a mild cleaning solvent to clean the columns.
Lubricate the bearing between chain wheel and the shaft with the calcium sulfonate base grease
while raising.
Lubricate the place between chain wheel with chain using a grease gun.
Lubricate the lead rail with the calcium sulfonate base grease while raising.
This procedure will require the use of additional access equipment�����
Do not place ladders or scaffold on or against any part of the machine�����
Performing this procedure without the proper skills and tools may result
in death or serious injury����� Dealer service is strongly recommended�����
7 - Test the Up Limit Switch
Tools will be required to perform this procedure.
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