A 5902
Issue 3, 12.11.57

Maintenance Instructions

1. General
This Instruction indicates the maintenance attention which should be given to Containers, Cash, No. 2 and No. 3. A complete container comprises a Box No. 1 or 2 and a Lid No. 1.  The Containers, Cash No. 2 and Lid No. 1 are pictured below.

2. Sticking container
When a report is received that a container is sticking and cannot be removed by the collector, the following procedure should be adopted. The collector must be present during this operation.

  1. Remove the front of the coin.-collecting box and also the mechanism. If the collector has been unable to shake all the coins down into the container, any remaining in the coin box money funnel, or possibly in the mechanism, should b~ removed by using Pliers, Wiring, No. 2. These coins must be handed to the collector.
    If the container still cannot be removed proceed as follows.
  2. Remove the two nuts at the rear of the money funnel, using a Spanner, Box, No. 1. This will free the adapter pin (Box, C.C., Part, Adapter Pin No. 1) and allow the container to be removed, complete with the pin. If it is still not possible to withdraw the pin from the container, a spare adapter pin, which should be carried by the maintenance officer, should be fitted in position and an empty container, carried by the collector, left in situ. When the lid is eventually removed after being unlocked by the collection centre staff, the self sealing mechanism and the pin should be put aside for engineering attention. If the pin is damaged, it should be exchanged. If the self sealing mechanism is faulty, it should be dealt with as detailed in par. 3.

3. Faulty container
A faulty container should be examined by the maintenance officer at the collection centre, and repaired there whenever practicable. Alternatively, the container may be taken to the officer’s headquarters, or to the Regional or Area workshop, if local circumstances make such an arrangement preferable (but see par. 5). When a fault cannot be rectified by changing a part, or by some simple means such as tightening or replacing a nut or screw, the complete container should be returned to the collection centre supervisor for maintenance exchange.

4. Securing of screws and nuts

  1. The threads of the under-mentioned screws and nuts should be treated with cement (see par. 8) to prevent them working loose. After application of the cement, the screws and nuts should be thoroughly tightened.

    (i) Slider pivot screw - used in early models.

    (ii) Pawl pivot nut - early models where single nut and locking washer fixing employed.

    (iii) Locking lever pivot nut - early models where single nut and locking washer fixing employed.

  2. The single nuts and locking washers used for securing the lock in early models should be replaced by two 2BA locking nuts on each pillar. 
  3. The screws securing the sealing mechanism cover and the pawl-feed mounting plate should be fitted with locking washers.
  4. When a lid is receiving maintenance attention, the opportunity should be taken to check that all screws and nuts are tight, that the foregoing points have been covered and that the sealing is effective. Spanners, Flat, BA 2-3 and BA 4-6 are required for the nuts.

5. Locks
If a faulty lock No. 15 cannot be repaired locally, it should be removed from the lid and handed to the collection centre supervisor who will arrange for its replacement. If the lock is satisfactory, but it is necessary to take away the container for repair, the lock should be removed and handed to the collection centre supervisor who will retain it. The locks need not be removed, however, for routine inspection, where in any exceptional case it is necessary to take containers away from the centre for this purpose.

To enable a lid mechanism to be tested before, and after, repair, a Box, C.C., Part Adapter No. 2, and a Lock No. 19 (see D 3005) should be held locally. The Lock No. 19 has the same dimensions as the Lock No.15 used on the lids, but is operated with a screwdriver.

6. Difficulty In removing Label No. 292 from box
The label No. 292 (shown to the right) is the label which carries the exchange code and telephone number of the call office in which a particular container is being used. The collector inserts the label before fitting the container into the cash compartment of the coin box. Once inserted, the splayed tabs at the top of the label catch under the lid, and the label cannot be taken out until the lid is unlocked and removed.
Occasionally, difficulty is experienced in removing the label after the lid has been removed, due to the splayed tabs catching in the small gap between the back of the label-holder and the top ledge of the box.

The liability to catch can be obviated by bending forward the back of the label-holder so that it is just proud of the plane in which it and the slot edge of the ledge normally lie. This bending can be done by standing the box on its end with the label-holder downwards, and bending the back of the holder forward by light blows from a small hammer. Care should be taken not to bend the label-holder too much or the top edge will prevent insertion of the label.

7. Routine inspection
A nominal inspection periodicity is given in TESTS & INSPECTIONS, Routine, S 5011, but this periodicity should be adjusted to meet local conditions as indicated by the fault rate shown by the Fault Record Card (A 2538) held at the Maintenance Control. Routine inspections should be performed at the collection centre after the containers have, been emptied and will therefore require the co-operation of the collection centre staff with whom the necessary arrangements should be made. During the inspection period, daily visits should be made until all, or almost all, of the containers have been dealt with. The number of containers inspected and the number found faulty should be reported daily to the Maintenance Control. 

8. Cement
Suitable cement for securing nuts and screws (see par. 4) may be obtained in lots of 5 lb from W.S. Jenkins and Co. Ltd.


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Last revised: September 19, 2010