P/N 428668A
REPAIRING ALUMINUM COIL
The aluminum coils used in Hussmann merchan-
disers may be easily repaired in the field.
Materials are available from local refrigeration
wholesalers.
Hussmann recommends the following solders and
technique:
Solders
Aladdin Welding Products Inc.
P.O. Box 7188
1300 Burton St.
Grand Rapids, MI 49507
Phone: 1-800-645-3413
Fax:
1-800-645-3414
X-Ergon
1570 E. Northgate
P.O. Box 2102
Irving, TX 75062
Phone: 1-800-527-9916
NOTE:
Hussmann Aluminum melts at 1125°F (607°C)
Aladdin 3-in-1 rod at
732°F (389°C)
X-Ergon Acid core at
455°F (235°C)
Technique
1.
Locate Leak.
2.
R
EMOVE ALL PRESSURE
.
3.
Brush area UNDER HEAT.
4.
Use P
RESTOLITE TORCH ONLY
. N
UMBER
6
TIP
.
5.
Maintain separate set of stainless steel
brushes and
USE ONLY ON ALUMINUM
.
6.
Tin surface around area.
7.
Brush tinned surface UNDER HEAT,
thoroughly filling the open pores
around leak.
8.
Repair leak. Let aluminum melt solder,
NOT the torch.
9.
Don’t repair for looks. Go for thickness.
10.
Perform a leak check.
11.
Wash with water.
12.
Cover with a good flexible sealant.
