Abacus Lighting, Sutton-in-Ashfield, Nottinghamshire, NG17 5FT, England. Tel: (+44) 01623 511111, www.abacuslighting.com
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3.4. Fitting the Ram to the Mast
The ram attachment procedure differs between the HL250 and HL330 masts.
3.4.1. HL250 Mast (RLH5 only)
Wheel the unit up to the mast and park it conveniently to one side. Remove the mast door and
connect the unit to a suitable power source either from within the mast base or via a portable
generator, minimum 2.5Kva. Remove the upper and lower ram anchor pins and place next to
the base of the mast. Lift the ram from the trolley and place between the gussets at the base of
the mast.
Fit the lower ram anchor pin through the ram and gusset and insert the retaining pin. Support
the ram against the mast. Operate the control valve to extend the ram until it is possible to
insert the upper end of the ram between the two gussets and secure with the upper ram
anchor pin. Fit the retaining clips to the upper and lower ram anchor pins.
3.4.2. HL250 Mast (RLH7 only)
Fitting of the RLH7 ram is as per the RLH5 except the ram is operated manually.
3.4.3. HL330 Mast
Connect the unit to a suitable power source either from within the column base or via a
portable generator, minimum 2.5Kva. With the ram attached to the motor/pump unit as
described in the previous section, switch on the power supply and remove the lower ram
anchor pin. Wheel the unit up to the mast and align the ram with the ram anchor gusset on
the mast. Tilt the handles upwards and offer the lower end of the ram to the anchor gusset as
indicated. Align the holes and insert the lower ram anchor pin and secure with the retaining
pin provided. With the pump unit still inclined, operate the control valve to extend the ram
and allow the upper ram anchor pin to be released. Grasp the upper end of the ram and lift it
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