Prism Medical UK transactive tra, Техническое руководство

Страница: 24 / 45

Technical manual August 2009
Rev: 01/08/09 Page:
24
MECHANICAL INSTRUCTION SHEETS
M1 - Replace Lifting Strap – Frayed, Stress Streaks, Length
IMPORTANT NOTE: Use extreme caution when performing internal servicing on the hoist.
Ensure that the battery has been disconnected before starting.
1.
Using the DOWN button on the hand control release the entire strap (until the lower limit
switch engages and stops the strap).
2.
Remove the hoist cover per section B1, Getting Access to the Transactive-Xtra. Also,
remove the battery & its brackets (nearest to the strap pin) as per section E5, and remove
the PCBs as per section E2.
3.
Remove the C-Clip from the motor side of the main drive axle.
4.
Using the large vice grips, grab hold of the free end of the shaft. Leave the C-clip attached to
prevent accidental damage to the shaft. If damaged, the shaft will not fit back into gearbox.
Gently rotate and pull at the same time to release shaft. Pressure may be applied to the
gearbox to assist in the shaft removal.
5.
Pull out and replace the old strap. It is very important that the end of the strap that is inserted
into the shaft is oriented with the overlapped side facing towards the motor side of the hoist
& away from the gearbox side. Use two fingers to guide the strap.
6.
Use a pencil or ballpoint pen to centre the strap through the gearbox.
7.
Reinsert the shaft into the gearbox. DO NOT USE FORCE. If the strap has been centered
properly, the shaft should move easily into position.
8.
Replace the C-clip on the drive axle using needle nose pliers.
9.
Operate the hoist in the UP direction and the strap should start to wind into the gearbox.
10. Reassemble hoist and test.
Remove C clip Remove shaft Place strap into slot Folded strap facing motor