Owner's manual

Troubleshooting the Jet
Basic troubleshooting and suggested recovery measures are presented in Table 6-1. Due to variances in
production environment and operational conditions, not every possible problem can be addressed.
TIPS To quickly identify problems, look for obvious signs such as burnt, missing, damaged, or loose
parts as well as obstructions and spills. Obvious uncharacteristic heat, noise, vibration, odor,
or movement can also help to isolate problems.
Table 6-1 Troubleshooting Guide
Symptom Possible Cause Recovery
Clogged nozzle Clean the nozzle plate thoroughly.
Clean Jet. See “
Inspecting the DJ-100 for
Wear
” in the
Plugged jet
Maintenance and Service
section.
No power to jet
Make sure that the jet power cable is
connected to the power outlet on the
dispensing head.
Intermittent or no fluid
dispensing
Replace with a new syringe and reconnect
the fluid pressure fitting.
Fluid syringe is empty
Make sure the fluid pressure is on.
Increase syringe air pressure. Refer to the
applicable dispensing system Operations
Manual for instructions.
Syringe air pressure set too
low
Jet on time and off time is
too low
Increase the jet on time and jet off time.
Drive mechanics do not
have time to damp-out after
an X-Y move
Increase the settling time in the Dot
Parameters. Refer to the Fluidmove User
Guide or Online Help for instructions.
Inconsistent shot sizes
Air voids in fluid syringe Replace with new fluid syringe.
Jet on time is too big Decrease the value of the on time.
Decrease syringe air pressure (30 psi
max). Refer to the applicable dispensing
system Operations Manual for instructions.
Shots too large
Syringe air pressure set too
high
Jet is contacting other
components during
Dispensing Head
movement
Check the save Z height and dispensing
height.
Incorrect Jet Bracket /
Mounting Plate installation
Check the Z mounting location.
16