Installation Of The Ql Boat Trim System - Volvo Penta QL Boat Trim System Instructions D'utilisation Et D'installation

Installation of the QL Boat Trim System

Note! Before starting the installation of your QL Boat
Trim System, read carefully the next coming pages! Es-
pecially notice the "Note!", "Important!" and "War-
ning!" remarks.
The interceptor units (C) fig. 1 and 4 shall be installed on
the transom close to the boat bottom. The exact positio-
ning is set by the template, included in the delivery (for
detailed instructions, see below). The further outboard
the interceptor units are mounted, the greater the lateral
(side-to-side) control. Position the interceptor min. 50
mm from the chine and run towards the centerline of the
boat. Boats with Outboard Motors, Inboard/Outboard (I/
Os) or Water Jet installation, must maintain a minimum of
200 mm from the centerline of the actual drive unit to the
closest edge of the interceptor units. See fig. 7.
Fig. 7
Boats with inboard motors may utilize the entire run of
the transom, still leaving min. 50 mm from the chine. If
the boat has strakes reaching the transom, the intercep-
tor units shall preferrably be installed next to these stra-
kes. See fig. 8.
Fig. 8
Note! Check the flatness (with a ruler) in different areas,
vertical plane and horizontal plane, of the transom area
intended for the interceptor mounting. If the mounting
area is not within 2mm flatness, grind it accordingly. It
might be necessary to fill the unevenness with a
suitable material before grinding. Alternatively a shim of
suitable material can be used and fixed to the transom,
in order to provide a straight, flat and smooth mounting
surface. Before continuing the installation, recheck (with
a ruler) that the flatness of the prepared surface is kept
within the 2 mm. See fig. 9a-b.
8
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The template, see fig 10, is equipped with pilot holes for
marking on the transom. Place the template on the tran-
som considering the guidelines as specified above. If
Fig. 10
two pairs of Interceptors are installed, i.e. two units on
each side of the transom, leave approx 3 mm between
the two templates. See fig 11.
Fig. 11
Preferred location Preferred location Preferred location Preferred location Preferred location
Before the installation is continued, always check there
relative to strakes! relative to strakes! relative to strakes! relative to strakes! relative to strakes!
are no obstacles on the inside of transom (bulkheads,
tanks, fuel lines etc.) that can interfere with or be dama-
ged by the interceptor installation. See fig 12.
OK location OK location OK location OK location OK location
relative to strakes! relative to strakes! relative to strakes! relative to strakes! relative to strakes!
Fig. 12
Warning! Be sure the bilge is completely ventila-
ted and free of gas fumes. Drilling into a hull con-
taminated with gas fumes may cause a violent
explosion.