WAC 296-301-04503
Enclosed hot air dryers. (1) Lever
control. When slashers are operated by control levers, these
levers shall be connected to a horizontal bar or treadle
located not more than 69 inches above the floor to control the
operation from any point.
(2) Push-button control. Slashers operated by
push-button control shall have one start button at each end of
the machine and stop buttons shall be located on both sides of
the machines at intervals spaced not more than 6 feet on
centers.
Note:
Inching buttons should be installed.
(3) Dryer enclosure. The dryer enclosure shall be
provided with an exhaust system which will effectively prevent
wet air and steam from escaping into the workroom.
(4) Nip guards. All nip guards shall comply with Table
R-1.
TABLE R-1
GUARD OPENINGS
Openings in the guard or between the guard and working surface
shall not be greater than the following:
Distance of
opening
from nip point
Maximum
width of opening
0 to 1 1/2
1/4
1 1/2 to 2 1/2
3/8
2 1/2 to 3 1/2
1/2
3 1/2 to 5 1/2
5/8
5 1/2 to 6 1/2
3/4
6 1/2 to 7 1/2
7/8
7 1/2 to 8 1/2
1
1/4
The measurements in Table R-1 are all in inches.
(5) Expansion chambers. Slasher kettles and cookers
shall be provided with expansion chambers in the covers, or
drains, to prevent surging over. Steam control valves shall
be so located that they can be operated without exposing the
worker to moving parts, hot surfaces, or steam.