Graco 332574D - RS Gun Cutter Assemblies Manual De Usuario
Operation
332574D
7
Operation
Cutter Assembly
RS guns with a cutter installed have two modes of oper-
ation. When the trigger is pulled halfway, material sprays
but the cutter is not activated. When the trigger is pulled
all the way, the air motor in the cutter is started and
glass begins dispensing.
ation. When the trigger is pulled halfway, material sprays
but the cutter is not activated. When the trigger is pulled
all the way, the air motor in the cutter is started and
glass begins dispensing.
Premature Blade or Anvil Wear
The most common causes of premature anvil or blade
wear are excessive tension between the anvil and
blades, excessive cutter speed, and excessive tension
between the idler wheel and anvil. See page 8 for the
Adjust Anvil to Cutter Head Tension procedure.
wear are excessive tension between the anvil and
blades, excessive cutter speed, and excessive tension
between the idler wheel and anvil. See page 8 for the
Adjust Anvil to Cutter Head Tension procedure.
To reduce the cutter speed while keeping the same
glass output, perform the following procedure:
glass output, perform the following procedure:
1.
Do a bag check to establish a baseline for the cur-
rent cutter output.
rent cutter output.
a.
Weigh a bag.
b.
Dispense glass into the bag for 15 or 30 sec-
onds depending on the output.
c.
Weigh the bag to determine glass output. This
is your fiberglass output baseline.
2.
Add another strand of roving to the cutter inlet.
3.
Engage trigger lock.
4.
With the trigger lock engaged, rotate the cutter
motor (AH) clockwise to decrease speed. See F
motor (AH) clockwise to decrease speed. See F
4. If necessary, rotate counter-clockwise to increase
speed.
speed.
5.
Do another bag check to determine the new glass
output.
output.
a.
Weigh a bag.
a.
Dispense glass into the bag for the same
amount of time as in step 1b.
b.
Weigh the bag to determine glass output.
6.
If the weight does not match the baseline bag
weight, adjust the cutter speed then do another bag
check. Repeat until the new bag weight matches the
baseline bag weight.
weight, adjust the cutter speed then do another bag
check. Repeat until the new bag weight matches the
baseline bag weight.
Anvil and Blade Replacement
F
IG
. 4
NOTICE
More tension between the anvil and blades leads to
the anvil and blades wearing out faster. To prevent
premature wear and to maximize anvil and blade
life, use the minimum tension required to cut the
glass and make small increases in tension when
strands are not cut correctly. See Adjust Anvil to
Cutter Head Tension, page 8.
the anvil and blades wearing out faster. To prevent
premature wear and to maximize anvil and blade
life, use the minimum tension required to cut the
glass and make small increases in tension when
strands are not cut correctly. See Adjust Anvil to
Cutter Head Tension, page 8.
AH
AG
AF
AJ
AC
To prevent skin injection, engage the trigger lock
before adjusting cutter motor.
before adjusting cutter motor.