Hamilton Jet HJ241, Manual

Page: 134 / 202

9.30
9 OVERHAUL
9.10 S
CREEN
R
AKE
A
SSEMBLY
O
VERHAUL
(I
F
F
ITTED
)
HJ-241 / HSRX
Rake pivot point to clear the starboard Screen
Rake Bearing housing in the Intake.
9. Carefully lower the Screen Rake [1] from the
underside of the Intake.
10.Check the Screen Rake for distortion, damage
and excessive wear at the Screen Rake Bearing
attachment points. Repair or replace as
required.
11.Remove the Screen Rake Bearing Attachment
Nuts [11] and Spring Washers [12] from the Port
Screen Rake Bearing [4] and withdraw the Port
Screen Rake Bearing from the Intake.
12.Check the "O" Rings [14] and [15] on the
Starboard Screen Rake Bearing and replace if cut,
damaged or distorted.
13.Check the Starboard Screen Rake Bearing for
wear and damage. Replace as required.
14.Remove the Grease Nipple [13] from the
Starboard Screen Rake Bearing [3] and ensure
that the grease channels are not blocked.
15.Refit the Grease Nipple [13] to the Starboard
Screen Rake Bearing.
16.Check the "O" Ring [14] on the Port Screen Rake
Bearing and replace if cut, damaged or distorted.
17.Remove the Grease Nipple [13] from the Port
Screen Rake Bearing [4] and ensure that the
grease channels are not blocked.
18.Refit the Grease Nipple [13] to the Port Screen
Rake Bearing.
19.Thoroughly clean all components and examine
for wear, damage and distortion.
9.10.2 Screen Rake Re-Fitting
Drawing HJ-241-09-002 Screen Rake Assembly re-
fers .
1. Smear a new "O" Ring [14] with grease and fit
onto the Port Screen Rake Bearing. Smear the
shaft and the bore of the Port Screen Rake
Bearing with marine grease.
2. Fit the Port Screen Rake Bearing to the Studs [9]
on the port side of the Intake. Refer to Drawing
HJ-241-01-000 Basic Jet Assemblies Standard and
Dry Run Sht 1 & 2.
3. Secure the Port Screen Rake Bearing with Spring
Washer [12] and Nuts [11], ensuring that the
Grease Nipple [13] is positioned at the top of the
bearing.
4. Torque load the Nuts [11] to the recommended
torque.
5. From beneath the vessel, whilst supporting the
Screen Rake and before fitting the Starboard
Screen Rake Bearing, feed the starboard Screen
Rake pivot point through the starboard Screen
Rake mounting point in the Intake.
6. Raise the port side of the Screen Rake and align
the pivot point of the Screen Rake with the Port
Screen Rake Bearing [4].
7. Push the Screen Rake fully to port and into the
Port Screen Rake Bearing [4].
8. From inside the vessel, smear new "O" Rings [14]
and [15] with marine grease and fit to the
Starboard Screen Rake Bearing [3]. Smear the
shaft and bore of the Starboard Screen Rake
Bearing with marine grease.
9. Fit the Starboard Screen Rake Bearing [3] over the
Starboard Screen Rake pivot point, which is
protruding through the Intake.
10.Align the Starboard Screen Rake Bearing [3] with
the Studs [9] on the Intake, Refer to Drawing HJ-
241-01-000 Basic Jet Assemblies Standard and
Dry Run Sht 1 & 2.
11.Ensure that the Grease Nipple [13] is positioned
at the top of the Starboard Screen Rake Bearing.
12.Secure the Starboard Screen Rake Bearing with
Spring Washers [12] and Nuts [11]. Torque load
to the recommended torque.
13.Fit the Screen Rake Actuating Arm [2] to the
Starboard Screen Rake pivot point and Fit Cotter
Pin [9]. Secure with Washer [10], Spring Washer
[12] and Nut [11]. Torque load to the
recommended torque.
14.Connect one end of the Spring [7] to the Spring
Anchor Bracket [8] and connect the other end of
the Spring [7] to the Screen Rake Actuator [2].
15.Grease the port and starboard Screen Rake
Bearings at the Grease Nipples [13] on top of the
Screen Rake Bearings until grease is seen oozing
from the inboard ends of the Screen Rake
Bearings.
16.Remove the support from the Screen Rake
beneath the vessel.
17.Carry out a functional check of the Screen Rake
Assembly. Have someone positioned beneath
the vessel to observe that the Screen Rake
operates without fouling on the Intake Screen.
9.10.3 Screen Rake Blanking Plugs
Refer to Drawing HJ-241-09-001 Blanking Plugs
(For Screen Rake).