P18/54 T-SM47j
5.4 Service schedule and safety check
4. Prior to changing a motor check it has failed and that
the fault is not in the control electronics (6.6.6 - 6.6.9).
5. In the sections below where the word ‘check’ is used
it is inferred that if the check reveals a fault then this
should be corrected.
6. Tilt tabletop into service position as required (1.9) but
note safety warning, section 4.1.
7. The right-hand column should be used to tick off each
item of the schedule on completion and to note parts
replaced (or wearing that will soon need replacing).
8. This schedule should be photocopied and completed,
copies to be retained by the engineer conducting the
service and the person responsible for the table.
This should be performed every 6 months to ensure the
continued safe operation of the table.
NOTES:
1. The numbers in brackets in this schedule details the
section of this manual that should be referred to when
performing or checking the activity detailed.
2. Prior to service operate all table functions (6.7) to
ensure correct operation, note any problems for
investigation during the service.
3. Remove base covers as required (6.2.2.1). Access
can be gained to the lower, lower-mid, upper-mid and
top of the column (6.2.3.2 to 6.2.3.5). If necessary the
telescopic covers can be removed (6.2.4.1).
1. Check pedal dampers for wear or leaking (6.3.3).
2. Disassemble, clean and lubricate the two fixed wheel assemblies and the four
castor assemblies (6.3.4, 6.3.5). Test resistor assembly as 6.3.5.1 (viii).
3. Check brake pads for wear, damage, or hard and brittle (6.3.6).
4. Check the castor pillar and pedal spindle bushes for wear (6.3.7 and 6.3.8).
5. Check and lubricate both lifting roller assemblies (6.3.9).
6. Check for wear of both pedal catch mechanisms (6.3.12) and renew the anti-
slip pad on both pedals (6.3.11).
7. Check security of all fixing screws, nuts and retaining clips within the base area
and check the pedal operation works smoothly and correctly.
8. Check main and standby battery voltage (standby and load) as 6.3.2.(iia). Check
security, connectors and loom routing of PSU.
9. Check the Trendelenburg, tilt and telescopic column actuator assemblies for
excessive wear or failure (6.4.2, 6.4.3, 6.4.4 and 6.4.5) and grease worm and
wheel on Trendelenburg and tilt motor assemblies.
10. Check the security and positioning of all wiring looms and connections. Add
cable ties, reposition or replace as necessary.
11. Check switch and fuse panels for operation and signs of damage (6.6.16).
12. Check for wear or damage to the tilt and Trendelenburg bushes in the trend
and tilt frame (6.4.6 and 6.4.7). Check all fixing screws within the inner and
outer (tilt and Trend) gimbal assemblies.
13. Check the wraparound aligning bearing pads, adjust as required to remove play
or replace (6.4.8).
14. Check height potentiometer is secure to the wrapround and that the cable is in
good condition and secure to the base (6.6.13).
15. Check the security and the routing of the 4 actuator PCA, connectors, energy
chains and all looms within the column. Cable-tie if necessary
16. Remove and replace bellows if split/damaged (6.2.5).
17. Check the security and the routing of the Three actuator PCA, connectors,
energy chains and traverse and break motor looms within the traverse housing.
Cable-tie if necessary.
18. Check that traverse motor and traverse belt tensioners are secure to the support
plate and lubricate tensioner bearings between screw and bearing only. Check
traverse motor (6.5.2.1) and adjustment of the traverse belt tensioners’ (6.5.2.2).
19. Check the condition and lubricate if necessary the drive belt guide needle
bearings between screw and bearing only (6.5.2.9).
Base and column:
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