Graco 311163ZAC Bin Evacuation System Manual De Usuario
Maintenance
28
311163ZAC
Maintenance
Air Motor Icing
Air motor icing occurs when moisture in the compressed
air collects in the air motor and freezes, causing the
motor to stall. If icing occurs with any of the pumps, shut
off the air supply to all pumps and allow the ice to thaw.
air collects in the air motor and freezes, causing the
motor to stall. If icing occurs with any of the pumps, shut
off the air supply to all pumps and allow the ice to thaw.
To minimize icing:
•
Reduce the moisture in your compressed air by
using an air dryer or filter, which traps water.
using an air dryer or filter, which traps water.
•
Main air line should slope slightly downward so
water collects and can be drained at the end of the
line.
water collects and can be drained at the end of the
line.
•
Plumb a drop line from the top of each main air line.
Install an automatic drain or drain valve at the bot-
tom of each drop.
Install an automatic drain or drain valve at the bot-
tom of each drop.
•
Ensure air motor exhaust tube is outside of a refrig-
erated area.
erated area.
Preventive Maintenance
Your system operating conditions determine how often
maintenance is required. Record when and what kind of
maintenance is needed to create a maintenance sched-
ule.
maintenance is required. Record when and what kind of
maintenance is needed to create a maintenance sched-
ule.
Flushing the System
•
The equipment was tested with water. Flush the
system before loading material.
system before loading material.
•
Flush regularly to avoid having material dry and
build up and possibly contaminate new material or
cause blockages.
build up and possibly contaminate new material or
cause blockages.
•
Flush at the lowest pressure possible. Check con-
nectors for leaks and tighten them if necessary.
nectors for leaks and tighten them if necessary.
To flush the system:
1.
Load a bin containing water, compatible solvent, or
cleaning solution that can dissolve the material and
clean the system. Follow the procedure for Loading
the Bin, page 18 or page 27.
cleaning solution that can dissolve the material and
clean the system. Follow the procedure for Loading
the Bin, page 18 or page 27.
NOTE: Use solvent that is compatible with the equip-
ment wetted parts and the material you will dispense.
See Technical Data in your pump manual for wetted
parts and consult your material supplier.
ment wetted parts and the material you will dispense.
See Technical Data in your pump manual for wetted
parts and consult your material supplier.
2.
Operate the pumps and circulate the cleaning fluid
through the system for about 1-2 minutes or until the
equipment is clean.
through the system for about 1-2 minutes or until the
equipment is clean.
3.
Remove the bin of cleaning fluid from the frame. Fol-
low the procedure for Unloading the Bin, page 18
or page 27.
low the procedure for Unloading the Bin, page 18
or page 27.
4.
Operate the pumps at low pressure to remove
excess solvent.
excess solvent.
5.
Cleaning Pumps
1.
2.
Remove pumps from plate and frame.
3.
See the pump manual for maintenance and service
procedures.
procedures.
NOTICE
Operating the system without all the pumps func-
tioning can damage the system
tioning can damage the system