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
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crlaurence.com
NOVEMBER 2020
P. 18
8 REPAIR AND REPLACEMENT (CONT.)
8.1.2 Installation of New Hose
1. Turn off system power and disconnect melt unit electrical power from external source.
2. Never flex a hose when cold. Hoses have a minimum bend radius of 20.32 cm (8 in.) when hot.
Further flexing will cause permanent damage.
3. Heat hose JIC fittings [5] before adjusting or damage may result. New or clean hose fittings may
not require heating.
4. Install hoses on melt unit by tilting melt unit back until underside is accessible. Support unit with block on back of
housing so hot melt does not spill. Do not turn melt unit upside down.
5. Support hose to prevent excessive flexing. Do not support hose in a way which may add to its thermal
insulating characteristics or overheating will result. Failure to properly support the hose will result in
premature failure.
6. Hose installation. See illustration below.
a. Carefully insert capillary bulb [4] into brass tube in end of hose [1] and do not bend capillary tube at a sharp angle.
Thermostat hoses perform best when capillary bulb is positioned at 3 or 9 o’clock. Before final tightening, rotate
hose on JIC fitting to obtain recommended position.
b. Loosely connect the hose JIC swivel fitting [5] to a straight or right angle fitting [6] on the flow control block [7].
c. Fasten hose support block [3] to chassis.
d. Attach hose electrical connector [2].
e. Tuck capillary tubing [4] and electrical connector [2] under melt unit.
f. Position and support hose before using.
g. Tighten JIC swivel fittings [5].
h. Check all hydraulic fittings for tightness before pressurizing system and re-tighten when hot. Check all
electrical connections for continuity.
i. Re-tighten hydraulic fitting after unit has reached operating temperature.
20
SS96 Hot Melt Unit 19600-135 Rev. B 10/26/00
8.1.2 Installation of New Hose
1.
Turn off system power and disconnect melt unit electrical
power from external source.
2.
Never flex a hose when cold. Hoses have a minimum bend
radius of 20.32 cm (8 in.) when hot. Further flexing will cause
permanent damage.
3.
Heat hose JIC fittings [5] before adjusting or damage may
result. New or clean hose fittings may not require heating.
4.
Install hoses on melt unit by tilting melt unit back until
underside is accessible. Support unit with block on back of
housing so hot melt does not spill. Do not turn melt unit
upside down.
5.
Support hose to prevent excessive flexing. Do not support
hose in a way which may add to its thermal insulating
characteristics or overheating will result. Failure to properly
support the hose will result in premature failure.
6.
Hose installation. See illustration below.
a.
Carefully insert capillary bulb [4] into brass tube in end of
hose [1] and do not bend capillary tube at a sharp angle.
Thermostat hoses perform best when capillary bulb is
positioned at 3 or 9 o’clock. Before final tightening, rotate
hose on JIC fitting to obtain recommended position.
b.
Loosely connect the hose JIC swivel fitting [5] to a
straight or right angle fitting [6] on the flow control
block [7].
c.
Fasten hose support block [3] to chassis.
d.
Attach hose electrical connector [2].
e.
Tuck capillary tubing [4] and electrical connector [2]
under melt unit.
f.
Position and support hose before using.
g.
Tighten JIC swivel fittings [5].
h.
Check all hydraulic fittings for tightness before
pressurizing system and retighten when hot. Check all
electrical connections for continuity.
i.
Retighten hydraulic fitting after unit has reached
operating temperature.
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