Timing Belt - SATO M84PRO Service Manual

Section 7: Replacement Procedures
11 Insert the short spindle of drive roller (1) into housing frame so that it rests on the far side of
the label ramp secure using clamp (4) and two screws (3).
12 Insert clamp (8) onto the left end of drive roller (1) and secure to the frame using screw (7).
13 Insert pulley (6) onto the left end of drive roller (1) and apply inner belt (not shown).
14 Apply outer belt (not shown) to pulley (6) and e-clip (5) to left roller spindle.
15 Adjust belt tension in accordance with its relative procedure in the Adjustment Procedures
section of this manual.
16 Reconnect power supply cord, test cycle, and reattach/close all covers.
NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section
provides guidance on housing cover, media, and ribbon installation.
TIMING BELT REPLACEMENT
The M84pro Printer utilizes four timing belts coupled with dual action toothed pulleys to provide
drive distribution throughout the assembly. Two belts are configured to transfer torque from the
motor to the label feed roller. A third belt transfers torque from the feed roller to the platen roller.
And the fourth transfers torque from the platen roller to the ribbon rewind spindle. All four
operating in conjunction provide the total drive configuration for the primary machine.
The optional cutter assembly has its own drive mechanism that operates when directed by the
printer, but independently of the printer drive assembly. The cutter drive assembly also
comprises drive belts and pulleys. Those will not be addressed in this procedure.
1 Switch off the printer and disconnect the power supply cord.
2 Open/remove the top, right, and left housing covers.
NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance
on housing cover removal.
3 Disconnect all wiring harnesses that pose an obstruction to belt removal.
4 Remove two screws (1, Figure 7-12a) securing pulley bracket (2) to the printer frame.
5 Withdraw bracket (2) along with belts (3) and (4) from motor spindle (5) and feed roller pul-
ley (6) respectively.
M84Pro Service Manual PN 9001111A Page 7-14