SCM CU 300C - Belt Stretching; A Saw Blade Spindle

20 - MAINTENANCE
EN
Pag. 30/44 - Cap. 20 THIS MANUAL IS PROPERTY OF SCM INDUSTRIA S.P.A - ANY TOTAL OR PARTIAL REPRODUCTION IS STRICTLY FORBIDDEN
20.23 BELT STRETCHING
(ev_20-23_0.0)
DANGER-WARNING:
check the belt tension after the first 10 hours of machine operation.
Do not overstretch the belts not to overload the bearings.
Overstretching may overheat and destroy the belts.
When the adjustment has been carried out, again check the stopping time.
20.23.1.A SAW BLADE SPINDLE
(he_20.23.1a)
DANGER-WARNING:
before carrying out any of the operations make sure to cut the main electric power and disconnect
socket T from plug S.
U.S.A. and CANADA version:before carrying out maintenance operations, adjustments or to
dismount any machine member turn main switch (Y fig. 20.23-1-A) to 0, lock it then indicate this
with a sign.
DANGER-WARNING:
WAIT UNTIL THE SAW BLADES ARE STILL.
DANGER-WARNING:
use proper gloves for handling the tools.
• Remove the saw blade as shown in Chap. 4.
• Disassemble the front guard (F fig. 20.23-1-A).
• Completely lower the saw assembly and incline it by 45° (see Chapter 6).
• Loosen the screw (B fig. 20.23-1-A).
• Push the motor downwards and tighten the screw (B fig. 20.23-1-A).
• Fit the saw blade as shown in Chap. 4.
• Fit the front guard (F fig. 20.23-1-A).
DANGER-WARNING
DO NOT use the machine without the required guards for every machining process or removing
part of the guards.
CAUTION:
an excessive belt tightening will cause both functioning failures and belts wear beforehand.
By exerting a force P in the middle of a belt, the latter must have a yielding f as shown in the table.
Force P
N Kp
Yielding f (mm)
24 ÷ 26 2,4 ÷ 2,6 3 ÷ 4