7. Maintenance and Servicing
Even if during the warranty period, the snow protection hood becomes rusted under conditions that
are caused by alkaline or corrosive moisture, recommendations are to provide salt damage resistance
products to prevent such damage.
In order to prolong product life, perform periodical maintenance to prevent signi
fi
cant aging due to
deterioration. Carry out the following periodical inspection and maintenance works in conjunction with air
conditioners’ inspection.
(1) Red Rust Generation and Coating Film Check
If red rust is generated, or coating
fi
lm is peeled/cracked, scour the rust off or apply touch-up coating.
When recoating such parts, be sure to grind the coating using sandpaper (#180 to 230) before re-
applying coating agent. Wear protective equipment such as vinyl gloves when handling the coating
agent to prevent contact with skin.
(2) Retightening Screws for Installation and Assembly
Check for loose screws and retighten when inspection and maintenance is performed. In order to
prevent screw breakage, be sure to tighten with the following torques:
* M5 Tapping Screw Type C for Assembling
6
: 2.6 + 0.7 [Ibf-ft] (3.5 + 1.0 [N•m])
* M5 Tapping Screw Type B for Installation
5
: 1.8 + 0.7 [Ibf-ft] (2.5 + 1.0 [N•m])
© 2015 Johnson Controls, Inc.
P5415546
Code No. LIT-12012089
Issued April, 2015