Multiquip 8FP Series Manuel D’Utilisation

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 8 
Problems encountered by uneven component 
wear 
 
1) Inadequate free play exists between the 
flails/spacer washers and the support plates of the flail 
drum. If the flails  and spacer washers do not have 
complete freedom of movement, they will not be 
capable of properly rotating  about the flail drum rod. 
The result is rod wear confined to two locations that 
are usually 180 degrees apart. FIGURE 9. Variances 
in flail and spacer washer thicknesses affects free play 
when  assembled on the drum. Because free play is 
also created during the planing process due to actual 
flail  and spacer washer wear,  a certain  amount of 
"tightness" can sometimes be tolerated without 
affecting the service life of the drum rods or flails. The 
specific  amount of "tightness" can usually be 
determined through trial  and error. If the flails  and 
spacer washers appear too tight on the drum, remove 
an  appropriate flail or washer  and reassemble the 
drum. If a short, operational test indicates normal 
component wear patterns, the apparent problem has 
been solved. A general rule for consideration: it is 
better to have the flails and spacer washers a "little too 
loose" on the drum than a "little too tight". 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
FIGURE 9 
 
 
2) Mixing both worn and new flails on the drum. Proper 
flail  action  against the work surface material requires 
that the flails be of the same, approximate dimensions. 
Flails with various inside and outside dimensions will 
not impact the work surface material with the same 
intensity and deliver the same results. Flail rod wear is 
directly proportional to the amount of force it must 
supply  against each, individual flail. When a rod can 
no longer supply adequate force against the flails, it 
will break, allowing the flails to be hurdled against the 
inside of the Floor Planer frame. The more aggressive 
flails require greater forces to keep them contained on 
the rod. These forces, in turn, create faster  and/or 
uneven rod wear rates. 
Because flail drum rods are a critical component of the 
actual planing process, it is important that each rod be 
inspected on a regular basis to determine proper 
structural integrity. 
 

 

 

 
UNDER NO CIRCUMSTANCE IS WELDING AND/OR 
ANY OTHER TYPE OF METAL BUILD-UP 
PROCESS ALLOWED TO BE PERFORMED ON A 
WORN DRUM ROD. TYPICAL MAINTENANCE 
TECHNIQUES CAN ALTER THE ORIGINAL HEAT