Hamilton Jet HJ241, Manual

Page: 136 / 202

9.32
9 OVERHAUL
9.11 HSRX H
YDRAULIC
R
EVERSE
S
YSTEM
HJ-241 / HSRX
13.Remove the Support Bracket [4] from the Stud on
the rear of the Pump ensuring that the Washer
[13], fitted between the Adjusting Link [4] and the
rear of the Pump, is removed.
14.Remove Screw [9] and Spring Washer [7]
securing the Pump [1] to Mount Bracket [3] at the
pump forward lower attachment point.
15.Remove Nut [8] and Spring Washer [7] securing
the Pump [1] to the Intake Casting at the rear
lower attachment point of the pump.
16.The Pump may now be removed from the Jet
Unit.
17.Remove the Nuts [8] and Spring Washers [7]
from Studs [5] attaching the Support Bracket [3]
to the Bearing Housing of the Jet Unit.
18.Remove and retain the Support Bracket [3].
9.11.2 Re-Fitting the Pump
Assembly to the Jet Unit
Refer to the following Drawings: -
CT-HPU-01001 Hydraulic Power Unit.
CT-HSE-12-001 Hose Kits.
MOUNT THE PUMP ASSEMBLY [1] ONTO THE
BEARING HOUSING USING THE FOLLOWING
METHOD:-
1. Attach the Pump Assembly [1] to the Intake
Casting by the Stud located at the rear lower
attachment point of the pump and secure loosely
in position with Spring Washer [7] and Nut [8].
Do Not Torque Load.
2. Attach the Support Bracket [3] to the 2 x Studs [5]
on the Bearing Housing and secure with Spring
Washer [7] and Nut [8]. Torque load to the
recommended torque.
3. Secure the Support Bracket [3] to the forward
lower attachment point of the Pump Assembly [1]
with Spring Washer [7] and Screw [9]. Tighten
Screw enough to allow slight movement of the
Pump.
4. Attach the Adjusting Link [4] to the Stud [5] on
the upper part of the Bearing Housing ensuring
that the elongated slot in the Adjusting Link [4] is
outboard of the Jet and is located over the Stud
on the rear of the Pump. Ensure that Special
Washer [13] is fitted to the Stud on the rear of the
Pump before fitting the elongated slot in the
Adjusting Link [4] over the Stud.
5. Loosely secure the inboard end of the Adjusting
Link, with Spring Washer [7] and Nut [8].
6. Secure the outboard end of the Adjusting Link,
loosely with Special Washer [13], Spring Washer
[7] and Nut [8]. Do Not Torque Load.
7. Fit the Pump drive Belt and tension by levering
the Pump body away from the Intake until the
correct belt tension is achieved.
NOTE:
1.The Belt tension is correct when a 2.4 mm
deflection is achieved when a load of 580 to
870 gr (1.3 to 1.9 lbs) is applied to the centre
of the Belt.
2.If a new Drive Belt has been fitted, the Belt
should be re-tensioned after 30 minutes to 4
hours of running at full load, to compensate
for initial belt stretch and "bedding" into the
Pulley grooves.
8. Tighten Nut [8] on the inboard end of the
Adjusting Link and torque load to the
recommended torque.
9. Tighten the Nut [8] at the elongated slot end of
the Adjusting Link [4], which secures the Pump
[1] to the Adjusting Link [4]. Torque load the Nut
[8] to the recommended torque.
10.Tighten Screw [9] securing the Pump [1] to the
Support Bracket [3] and torque load to the
recommended torque.
11.Tighten the Nut [8] located at the rear lower
attachment point of the pump and torque load to
the recommended torque.
HOSE CONNECTIONS:
Refer to Drawing :- CT-HSE-12-001 Hose Kits .
NOTE:
1. Thread tape should be used on all BSPT to
BSPP (parallel to taper) connections.
2. Push Lock Hoses should be renewed if
disassembly is required.
1. Fit the high pressure Hose [H1] between the
forward connection on the Cylinder and the 3/8"
BSP Adaptor on the Pump, ensuring that the Hose
is routed forward of the Inspection Cover.
2. Fit
3
/
8
" Push Lock Hose [H2] between the rear
connection on the Cylinder and the outlet on the
top of the Jet mounted Oil Cooler.
3. Fit
3
/
8
" Push Lock Hose [H3] to the lower
connection on the Jet mounted Oil Cooler and the
opposite hose end onto the inlet to the Tank.
Secure with Hose Clip [7].