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MAN0530 Issue 09 October 03 Searchline Excel
2104M0506
Bayonet-style Trident-type telescope assembly
Caution: This type of telescope assembly must only be used with Trident-type Excel
units.
This type of telescope assembly consists of a telescope and mirror attached to a datum mount.
The mount features a bayonet fitting for attaching the assembly to the Excel unit.
The datum mount has a handle for rotating and locking the whole assembly over the cowl and
onto the Excel unit’s body.
Before tightening the datum mount the telescope can be rotated to a convenient viewing position.
To remove the telescope assembly reverse the following mounting procedure.
(a) Align the telescope’s two datum mount bayonet slots with the two locating pins on
the cowl of the unit as shown.
Bayonet slot
(2 off)
Mirror assembly
Bayonet locating
pin (2 off)
Datum mount
Locking handle
Alignment telescope
Excel unit
Telescope
viewfinder
(b) Push the telescope datum mount fully home onto the two pins on the cowl.
(c) Without disturbing the datum mount use one hand to rotate the telescope to a
comfortable viewing position and hold it in that position.
A horizontal viewing position is the easiest to interpret.
3. INSTALLATION AND OPERATION
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