Hamilton Jet HJ241, Manual

Page: 65 / 202

5.5
5 INSTALLATION
5.4 M
OUNTING THE
J
ET
U
NIT
HJ-241 / HSRX
5.4.1 Mounting the Jet Unit to the
Hull
G.R.P Hulls; HJ-241-08-001 Installation Details
GRP Hull.
Aluminium Hulls; HJ-241-08-002 Installation De-
tails Aluminium Hull.
Steel Hulls; HJ-241-08-003 Installation Details Steel
Hull Sht1& 2.
1. Using approved lifting equipment, lift the Jet Unit
off the Hull and move it away from the Intake
Block.
2. Ensure threads of the Studs [3] are clean before
applying Loctite.
3. Coat the threads of the Studs [3] with Loctite 263
provided and tighten the Studs into the tapped
holes in the Intake Block [2]. A convenient
method of fitting the studs is to tighten two nuts
together on the top of the stud so that a spanner
can be engaged on the nuts to tighten the studs
into the base.
4. Liberally apply neutral cure R.T.V. Silicone
Sealant [7] to the top of the Intake Block and the
underside of the Jet Unit Flange and around the
Studs [3].
5. Carefully position the Jet Unit centrally over the
Intake Base and slowly lower the Jet Unit Flange
onto the Studs on the Intake Block.
6. Ensure that the Studs fitted to the front of the Jet
Intake, pass through the Intake Block.
7. Secure the Jet Unit Intake to the Intake Block with
Flat Washers [14]. Spring Washers [13] and Nuts
[12]. Tighten the Nuts [12] to the recommended
torque as shown on
Drawing 85113 Recommen-
dations for Fastener Locking, Torques and Thread-
ing Lubrication Sht 1.
8. Remove excess sealant from inside and outside
the Jet Unit.
9. If not already connected, attach the Screen Rake
Spring [7] fitted to the Screen Rake Actuator [2],
refer to Drawing HJ-241-09-002 Screen Rake As-
sembly .
5.4.2 Assembly of the Transom Plate
to the Hull
1. Ensure that the Reverse Duct has been removed
from the Jet Unit. Refer to Section 9.2.1 Reverse
Duct Removal. .
2. Place the Transom Plate over the rear of the Jet
Unit and up against the Transom.
3. Centralize the Transom Plate in relation to the
Intake.
4. Make small locating dimples in the Transom for
the 12 securing Screws, by using a 9mm diameter
drill through the holes in the Transom Plate.
5. Slide the Transom Plate back off the Tailpipe.
6. Drill 9mm diameter holes through the Transom
using the dimples to locate.
7. Remove the Transom Plate and clear away any
swarf and burrs.
8. Lubricate the Transom Seal O-Ring [8] with
vegetable oil. Fit in place on the Intake. Take
care not to get any oil on the Transom where
sealant will be applied.
9. Liberally apply neutral cure RTV Silcone Sealant
[7] (supplied) to the Transom Plate contact area
on the Hull and also to the joint face of the
Transom Plate and the heads of the attachment
Screws [9].
10.Fit the Transom Plate [1] up over the Mainshaft
and Impeller. Fit over the O-Ring [8] fitted to the
Intake and align into position with the holes
already drilled in the Transom.
11.Secure the Transom Plate to the Transom using
Screws [9], Nuts [4], Flat Washers [6] and Spring
Washers [5] as shown in the installation
drawing.
NOTE: Ensure that the screw heads are positioned
on the outside of the Transom as shown on
the Installation Drawings.
12.Tighten all the securing Screws [9] to the
recommended torque as shown in Drawing
85113 Recommendations for Fastener Locking,
Torques and Threading Lubrication Sht 1.
Wipe
off any excess sealant.