Hamilton Jet HJ241, Manual

Page: 119 / 202

9.15
9 OVERHAUL
9.5 S
TEERING
A
SSEMBLY
R
E
-F
ITTING
HJ-241 / HSRX
NOTE: The Nozzle Attachment Bolts [11] are fitted
using Loctite 222. Do not apply Loctite to the
threads of the Bolts [11] until “Nozzle
Vertical End Float Adjustment” is completed.
6. Fit the upper and lower Pivot Bolts complete with
the Pivot Sleeves [12] and Stepped Adjusting
Washers [13] fitted, to secure the Nozzle to the
Nozzle Housing.
7. Tighten Bolts [11] and torque load to 60 Nm (45
ft/lbs).
8. Move the Nozzle through its full arc of travel to
ensure that the Nozzle moves freely.
NOZZLE VERTICAL END FLOAT ADJUSTMENT:
Check and ensure that the end float between the
Nozzle and the Nozzle Housing is between 0.1 to
0.3 mm.
1. Measure between the outer shoulder of the
Steering Pivot Bush Sleeve [22] and the inner face
of the Thrust Washer [23].
Refer to Drawing HJ-
241-06-000 Steering Assembly General Arrang-
ment Sht1.
This should measure between 0.1 and
0.3 mm.
2. Invert either one or both of the Stepped Adjusting
Washers [13] to achieve the measurement above.
NOTE: The 'End Float' can be decreased by
inverting one or both of the Stepped Washers
[13].
3. Once the "End Float" has been adjusted, remove
the Pivot Bolts [11] and apply Loctite 222 to the
threads of the Pivot Bolts [11] and refit.
4. Torque load Pivot Bolts [11] to 60 Nm (45 ft/lbs).
STEERING LIP SEAL ADJUSTMENT:
Prior to refitting the Nozzle / Nozzle Housing to the
Tailpipe, the Steering Lip Seals [24] should be
adjusted for correct fitment.
NOTE: If the JT Steering Lip Seals [24] have been
removed, they should be refitted at this point.
Refer to Section
9.4.4 Nozzle Assembly
Overhaul.
1. Place the Nozzle / Nozzle Housing on a
workbench with the Nozzle facing downwards.
2. Adjust the Lip Seals [24] to give a 0.4 to 0.6mm
clearance to the spherical inner surface of the
Nozzle Housing [9].
NOTE: There is some movement in the Lip Seals [24]
when loosely secured with Screws [25], this
is to allow the Lip Seals to be adjusted to fit
the inside of the Nozzle Housing [9].
3. Thoroughly clean the threads of the Screws [25]
and apply Loctite 222.
4. Secure the JT Steering Lip Seals [24] using Screws
[25]. Tighten to the recommended torque.
9.5.2 Re-Assemble the Nozzle /
Nozzle Housing to the Tailpipe
Refer to Drawing HJ-241-01-000 Basic Jet Assem-
blies Standard and Dry Run Sht 2.
NOTE: Ensure that the Nozzle Assembly is fitted in
the correct orientation to suit the application.
Refer to Drawings
HJ-241-06-000 Steering
Assembly General Arrangment Sht1 .
NOZZLE INSERT RE-FITTING:
NOTE: The Nozzle Insert has a cutout in one side to
correctly locate the Nozzle Insert into the
Nozzle Housing.
Refit the Nozzle Insert [21] into the Nozzle Housing
[9], ensuring that the cutout in the Nozzle Insert
locates with the spigot in the rear of the Nozzle
Housing.
Refer to Drawing HJ-241-06-000 Steering
Assembly General Arrangment Sht1 .
RE-FITTING THE NOZZLE HOUSING ASSEMBLY
TO THE JET UNIT:- Refer to Drawings
HJ-241-06-
000 Steering Assembly General Arrangment Sht1.
1. Apply Loctite 243 to Studs [9] located on the rear
face of the Tailpipe.
2. With the Crank boss uppermost, refit the Nozzle
/ Nozzle Housing Assembly complete to the
Tailpipe attachment Studs [9] and secure with
Spring Washers [28] and Nuts [27]. Torque load
to the recommended torque.
9.5.3 Steering Shaft Re-Fitting
Refer to Drawings HJ-241-06-000 Steering Assembly
General Arrangment Sht1.
1. Smear the ball of the Steering Crank [4] with
grease and refit into the Steering Crank Bush [14]
of the Nozzle [15].
2. If the Steering Shaft has been removed to replace
the Steering Bushes. Lightly grease the Steering
Shaft and refit through the Steering Shaft Bushes
from the front to the rear of the Jet Unit.