Power Jacks C-Series - Manual (Page 12)

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Installation
4
4.3 Unpacking and installation
4.3.1 Remove the C-Series screw jack(s) from their container. Dispose of the packaging material and
the desiccant in an environmentally friendly way.
4.3.2 If it is necessary and in order to avoid damages, please use soft straps to transport or mount the
screw jack.
4.3.3 For translating screw jacks in order to avoid damages, do not attach the straps to the lead screw
but to the lead screw end fitting, cover pipe or to the screw jacks gearbox. Where possible lift
vertically.
4.3.4 For rotating screw jacks in order to avoid damages, do not attach the straps to the lead screw
but to the nut on the lead screw or to the screw jacks gearbox. Where possible lift vertically.
4.4 Mounting
4.4.1 Before starting assembly work, check the directions of rotation of all jacks, gearboxes and drive
motors with regard to the required direction of travel of each jack in the application.
4.4.2 All components must be carefully aligned, as alignment errors increase stress and power
consumption and lead to overheating and premature wear.
4.4.3 When installing screw jacks, ensure that the mounting face is flat and square to the guides of
the load, to within 0.4/1000 millimetres.
4.4.4 Before attaching the drive unit, the screw jack should be turned through its entire stroke by
hand, without load. Variations in the amount of force required and/or marks on the screw or
guides indicate alignment errors. Loosen the relevant mounting bolts and adjust positioning
until the correct alignment is achieved.
4.4.5 All mounting bolts must be re-tightened after a short period of operation.
4.4.6 Mount the screw jack by fixing the screw jack body to the structure by either its standard base
mounting points or via a mounting accessory like a trunnion. The screw end or nut should be
fixed to the moving part of the structure (or vice versa).
4.4.7 Verify that the structural attachment that connects to the screw jack end fitting or nut is aligned
throughout the screw jack stroke before connecting to the screw jack.
4.4.8 Take care when fitting couplings. A blow on a shaft end could cause gear set damage.
4.4.9 Shaft alignment is critical, check on installation
4.4.10 Bellows Boots
4.4.10.1 Push the bellows over the lead screw and attach the collars with the jubilee clips provided. Be
careful not to rip or tear the bellows boot.