8
Assembly
Mechanical Maintenance
Fitting the Eccentric Bearing
•
Remove the Fan Motor Cover by unscrewing the 4 screws using a 6 mm wide screwdriver.
•
Place this end of the Shaft against a solid base.
•
Fit the Eccentric Shaft Bearing
14
onto the Shaft.
Note: It is strongly recommended that a small press be utilised for this procedure.
•
Replace the Fan Cover and 4 screws using a 4 mm screwdriver.
Installing the Electric Motor
•
Ensure that both the Motor Flange, the Gasket and the Mounting Plate
17
are free from any dirt.
•
Smear both sides of the Gasket with a non-adhesive sealant.
•
Supporting the Motor
16
and ensuring that the Electric Enclosure
32
is on top, slide the motor studs through the holes in the
Mounting Plate.
•
Secure the Motor to the Plate from inside the Tank with the two M6 Socket Head Cap Screws using a 5 mm allen key
•
Feed the Solenoid Wire through the Gland
29
in the Mounting Plate leaving a little slack between the Electric Enclosure Assembly
32
and the Mounting Plate
17
and tighten the Gland Screw using a 17mm spanner.
Installing the Pump
•
Ensure that the 'O' rings are firmly in position on each Element's Discharge Port.
•
With the Discharge Port facing away from the Mounting Plate
17
, lift the Piston against the Spring and slide the Element
8
over
the Studs
15
and the Bearing
14
until they are up against the Mounting Plate. Repeat for all four Elements.
Note: HP41 and HP51 models have four equal size Elements. The HP21 and HP42 however have two different size elements.
Equal size Elements
MUST
be assembled so that they are diametrically opposed.
•
Slide the Manifold Flange
7
over the Studs
15
ensuring that the ports are facing the Elements and that the symbol 'T' is located
on top.
•
Tighten the eight Nyloc Nuts
36
to 30 Nm in an opposing sequence using a 17 mm socket and torque wrench.
Assembling the Combination Valve
•
Replace the two Plungers
109
in their respective ports.
Note: It is essential for efficient Valve Functioning that the Plungers be placed in their original positions.
•
Loosen the two nuts with a 10mm spanner and a 5 mm allen key and back-off the Pressure Adjusting Screws on top of the Spring
Domes
106
about three turns.
•
Insert the Bearing Pads
107
and Springs
108
in that order into the Spring Domes
106
.
•
Locate the Spring Dome Spigots in the matching recesses in the Valve Body
110
and secure with the four Screws
103
in each
Dome using a 3 mm allen key.
Assembling the Valve Set
•
Ensure that the four 'O' Ring Seals
113
are in place on top of the face of the Directional Valve
101
.
•
Place the Directional Valve
101
over the Combination Valve
114
, locating the Dowel Pin in the recess provided.
•
Secure the two Valves with the four M5 Socket Head Cap Screws
102
using a 4 mm allen key.
Installing the Valve Set
•
Screw the two Nuts on the Bulkhead Adaptors
1
as far on as possible by hand and slide the Washers as close as possible to
them.
•
Ensuring that the two 'O' Rings
111
are in place over Discharge Ports in the Combination Valve
114
, place the Valve over the two
holes provided in the tank.
•
Screw the long side of the Bulkhead Adaptors
1
into the ports and tighten using a 24 mm spanner
•
Secure the valve set to the tank by tightening the two Nuts up against the Washers with a 27 mm spanner.
•
Looking from the non-motor end of the HydraPac, fit the Male Quick Coupler
2A
to the Right Hand Side Adaptor and the Female
Quick Coupler
2B
to the Left Hand Side and tighten using a 24 mm spanner for both.
Item numbers in
bold
refer to the general assembly and combination valve drawings and parts lists on pages 10-16.
