Super Products MUD DOG, Operator'S Manual

Page: 67 / 126

PRE-OPERATION
Super Products LLC Publication: 0004175 2
-
7
2
Vacuum Relief Valves
Super Products offers two (2) types of vacuum relief
valves. The in-line "T" type vacuum relief valve is
delivered with the unit as optional equipment and its
operation is described in this procedure. The remote
operated vacuum relief valve is standard. It consists of a
hinged door which is opened/closed by a pneumatic
cylinder. The cylinder is controlled by the operator at the
control panel or the pendant remote or the wireless
remote. Its operation is also described in this procedure.
• Always use emergency "T" type relief valve, except
as noted in item six (6) below.
• When safety person is used, make sure he/she is in
full view of person(s) at end of vacuum hose.
• When working close to end of hose, wear tight fitting
clothes. Keep shirts and jackets closed so that shirt
tails and jacket tails will not be pulled into end of
hose. Remove loose fitting jewelry such as bracelets
and necklaces unless they are under tight fitting
clothing.
• Do not use hand or foot to remove obstructions from
end of hose.
• Keep all body extremities and clothing from end of
hose.
• The only time the emergency "T" type relief valve is
not required is when the operator is working vertically
off the boom hose. In this case only, the operator
should use the remote operated relief valve as
described elsewhere in this manual section.
Otherwise, use only the emergency relief valves
approved by Super Products. Failure to comply with
this requirement could cause bodily injury, for which
Super Products will not be responsible.
Operating Instructions - “T” Type Vacuum Relief

WARNING

CAUTION

WARNING

WARNING

WARNING

WARNING

CAUTION
See section on "Testing of T" type vacuum relief
valve before using due topossible personal injury
or death.
If person operating at end of vacuum hose is in a
confined space or for any other reason cannot
easily reach pull cord on their safety belt, there
must be a safety person(s) wearing safety belt
with pull cord attached who must be in a position
to view person(s) working at end of vacuum hose.
If vacuum relief valve is not working properly,
personnel should not be allowed in work at end of
vacuum inlet hose due to possible injury or death.
See section on testing of remote operated vacuum
relief valve before using due to possible personal
injury or death.
Never move close to the end of any vacuum hose
unless the safety person has the remote and is in a
position to observe all operators. Failure to comply
with this could result in serious personal injury or
death
If vacuum relief valve is not working properly,
personnel should not be allowed to work at end of
vacuum hose due to possible personal injury or
death.
Never work beyond the distance from the truck that
the wireless remote control was previously tested at.
Failure to comply could result in equipment not
properly operating.