GLASS DRILL INSTRUCTION MANUAL
PRODUCT MANUAL
crlaurence.com
C.R. Laurence Co., Inc.
•
2503 E. Vernon Ave., Los Angeles, CA 90058
•
1.800.421.6144
•
crlaurence.com
NOVEMBER 2020
P. 16
7 TROUBLESHOOTING (CONT.)
If troubleshooting attempts fail, contact your factory representative.
Problem
Solutions
Handgun and hose
fail to heat.
1. Verify incoming hose power connector is properly installed. Connector wire pins may be
misaligned or loose.
2. If no change, disconnect incoming hose power connector and check hose heater resistance
with ohmmeter. If hose heater has failed, replace hose. Refer to Heated Hose Manual.
3. Determine if applicator is heating by using a pyrometer or temperature sensing device. Do
not touch applicator by hand to determine temperature. Refer to handgun manual.
Adhesive output
too high
1. Decrease system fluid pressure with flow control valve. If no change, remove nozzle and
replace with a smaller orifice nozzle.
2. Decrease hose temperature by 4–10 °C (25–50 °F). If no change, consult your hot melt
material vendor regarding application.
3. Decrease tank temperature by 4 °C (25 °F).
Adhesive output
too low
1. Increase system fluid pressure without stalling motor by adjusting flow control valve.
If no change, remove nozzle and replace with a larger orifice nozzle.
2. Clean applicator nozzle.
3. Purge system.
4. Hot melt formulations tend to be a factor in previously listed problems. Refer to
Section 5.2, Startup Instructions, for cautions.
5. Increase hose temperature by 4–10 °C (25–50 °F). If no change, consult your hot melt
material vendor regarding application.
