Trimble Inc. CCKCDPD ユーザーズマニュアル

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     Installation
1 8      CrossCheck CDPD Mobile Unit Manual
The installer must provide an appropriate selection of fasteners to 
secure the CrossCheck CDPD to the mounting surface.
When using self-tapping screws:
Select an appropriate size and length for the mounting 
surface. 
The hole size leaves some allowance for holes drilled 
slightly off center from the specified dimensions.
When using machine screws:
Trimble recommends the use of number m3.5 
(or number 6) pan-head machine screws.
Select a screw length, which extends a safe distance 
beyond the mounting surface.
Secure the screw with a washer and nut. Lock washers are 
recommended to prevent vehicle vibration from loosening 
the fasteners.
2.6.1
Connecting CrossCheck CDPD to the Vehicle Chassis
For proper operation, the aluminum chassis of the CrossCheck CDPD 
must be connected electrically (grounded) to the chassis of the vehicle 
on which it installed. This can be accomplished in two ways:
Direct connection through metal screws (preferred)
Connection through the chassis ground wire