Walinga Central-Vac Operator And Parts Manual page 25

9. System Grounding:
Granular material
flowing through pipes,
hoses or lines can
generate an electrical
charge that will create
electrical discharges,
static and/or sparks. In
high dust environments
sparks or electrical
discharges can set off
an explosion. This
static charge condition
can be very annoying to
an operator.
The system is designed
using steel lines, metal
arm lock couplers on all
fittings, a metal spiral
strand in the hose that
is attached to each
fitting and metal pick-up components to
maintain electrical ground continuity and
through the entire system. Only when non-
metal components are used or the electrical
continuity is broken can sparks or shocks
occur. Use an ohmmeter to check the electri-
cal continuity of the system on a weekly basis
as a maintenance item and/or if anyone feels
a shock.
DANGER
ELECTRO-STATIC HAZARD
To prevent serious injury or death:
1. Make sure conveying lines and work
area are dust and fire hazard free.
2. Use Original Equipment / Hoses Only.
3. Do not use plastic hoses and / or
piping, unless those are properly
grounded.
Fig. 4-8 CAM LOCK GROUNDING (TYPICAL)
53-18290-6
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