Graco Bulldog Hydra-Cat 231836, Инструкция и перечень запасных частей

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Operation
Check the Drainage Bottles and Hoses
WARNING
INJECTION HAZARD
To reduce the risk of serious injury and property
damage, regularly check and clean the drain hose
and bottle for the automatic pressure relief valve.
If material is allowed to dry in and clog the drain
hose, the automatic pressure relief valve may not
fully release the fluid pressure if it opens or may
cause the drain hose to burst.
Check the drain hose and bottle (38) at the start of
each shift, and whenever there is an imbalance of
material, to see if the automatic pressure drain valve
has released material into the bottles. Clean the hose
and bottle as needed. Regularly check the drain hose
for cuts, leaks, or bulges and replace damaged
components before using the system. See Fig. 16.
Fig. 16
38
02948A
Monitor the Material Supply
CAUTION
Establish a rigid system for monitoring the material
supply to prevent the pumps from running dry. A
sudden lack of material in one pump may cause
many system problems, including air entrapment,
spitting of the fluids, fluid “crossovers”, pump
damage, downtime, and added system stresses.
Never allow the feed pump or solvent pump containers
to run dry. A dry container allows air to be pumped into
the system and causes incorrect proportioning. A dry
pump will quickly accelerate to a high speed, and may
damage itself and the other displacement pump be-
cause it causes a pressure rise in the other pump. If a
supply container becomes dry, stop the pump immedi-
ately, refill the container, and prime the system. Be
sure to eliminate all the air from the system.
NOTE: The pump runaway valve mentioned on page
11 of the Installation section shuts off the pump if the
pump speed accelerates quickly.