TM 9-4110-256-14
5-4.
CONTROL BOX COVER REPAIR.
This task cover:
Repair
INITIAL SETUP
Equipment Conditions:
Tools:
Brush
Refrigeration unit shut down (para 2-7) and power
1, Section 111I, Appendix B
disconnected.
Materials/Parts:
Control panel cover open.
Lock Washers (2)
1, Appendix G
General Safety Instructions:
General Purpose Adhesive
14, Appendix E
WARNING
Wiping Rag
3, Appendix E
High voltage is used in the
Acetone
refrigeration unit. Personal injury
18, Appendix E
can result if power is connected.
Methyl-Ethyl Ketone
19, Appendix E
Acetone and methyl-ethyl ketone
Gaskets (2)
(MEK) are flammable and their
vapors can be explosive. Repeated
Gasket
or prolonged skin contact or
inhalation of vapors can be toxic.
Use in a well ventilated area, wear
gloves, and keep away from sparks
or flame.
Repair.
NOTE
Repair is limited to replacement of gasket material.
(1) Remove two bolts (1) and lock washers (2). Open control box cover (3). Discard lock washers.
(2) Remove as much old gasket material (4) or (5) as possible by pulling or scraping it away from the control box
cover (3).
(3) Soften and remove old adhesive and gasket (4) or (5) residue, using acetone or methyl-ethyl ketone (MEK) and a
stiff brush.
(4) Fabricate new gasket (4) or (5) per appendix F.
(5) Be sure that the attaching surface of the control box cover (3) is clean and free of paint and old adhesive
material.
(6) Coat the mating surfaces of the control box cover (3) and gasket (4) or (5) with adhesive. Let both surfaces air
dry until adhesive is tacky, but will not stick to fingers.
5-7
