Hamilton Jet HJ241, Manual

Page: 133 / 202

9.29
9 OVERHAUL
9.10 S
CREEN
R
AKE
A
SSEMBLY
O
VERHAUL
(I
F
F
ITTED
)
HJ-241 / HSRX
Refer to Drawing HJ-241-10-004 Hatch Exten-
sion.
6. Ensure that the O Ring [34] fitted to the
Inspection Cover [20] is not cut or perished. Refer
to Drawing HJ-241-01-000 Basic Jet Assemblies
Standard and Dry Run Sht 1 & 2.
7. Smear the O Ring [34] with marine grease and fit
to the ‘O’ Ring groove on the underside of the
Inspection Cover [20].
8. Fit the Inspection Cover over Studs [58] fitted
around the Inspection opening and secure in
position with Spring Washers [22] and Nuts [23].
9. Torque load to the recommended torque.
10.Remove any ballast that may have been added to
the bow of the vessel and check the Inspection
Cover for leaks.
9.10 SCREEN RAKE ASSEMBLY
OVERHAUL (IF FITTED)
Refer to Drawing HJ-241-09-002 Screen Rake As-
sembly .
Before removing the Screen Rake, ensure that the
Screen has been removed.
Refer to Section 9.10.4
Screen Removal.
The Screen Rake need only be dismantled if it is
suspected of being defective for the following
reasons:-
1. The Port [4] and Starboard [3] Screen Rake
Bearings are worn.
2. The "O" Rings [14] and [15] are leaking.
3. The Screen Rake [1] is bent or damaged.
9.10.1 Screen Rake Removal
Refer to Drawing HJ-241-09-002 Screen Rake As-
sembly.
To remove the Screen Rake Assembly, the vessel
should be removed from the water to allow access
to the underside of the vessel. To remove the Screen
Rake, carry out the following:-
1. Support the Screen Rake beneath the vessel.
2. From inside the vessel, disconnect and remove
the Spring [7] from the Screen Rake Actuating
Arm [2] and Spring Anchor Bracket [8] on the
starboard side of the Intake, in the vicinity of the
Coupling Flange.
3. Remove Nut [11], Spring Washer [12], Washer
[10] and the Cotter Pin [9] securing the Screen
Rake Actuating Arm [2] to the Screen Rake [1].
4. Remove the Screen Rake Actuating Arm [2].
5. With the Screen Rake supported beneath the
vessel, from inside the vessel, remove the Screen
Rake Bearing Attachment Nuts [11] and Spring
Washers [12] from the Starboard Screen Rake
Bearing [3].
6. Whilst ensuring that the Screen Rake is
supported, withdraw the Starboard Screen Rake
Bearing [3]. The starboard Screen Rake pivot
point will now rest on the Screen Rake Bearing
housing in the Intake.
7. From beneath the vessel, whilst supporting the
Screen Rake move the Screen Rake fully to
starboard to allow the port Screen Rake pivot
point to clear the Port Screen Rake Bearing [4].
8. With the port Screen Rake pivot point clear of the
Port Screen Rake Bearing [4], move the Screen
Rake to starboard to allow the Starboard Screen