BS 1459-9:2021 pdf download – Rough-terrain trucks — Safety requirements and verification Part 9: Variable-reach trucks equipped with work platforms having a front guard that can be opened
4 Safety requirements
4.1 General The combination of the truck and the interchangeable work platform shall comply with EN 1459-3, EN 280:2013+A1:2015, as modified below, and the following requirements. Work platforms shall comply with EN 280:2013+A1:2015, 5.6.3, and 5.6.2 on all sides except that front guards may be opened by the persons on the work platform. Effort on the control lever or to move the front guard-rail for manual opening shall be limited to 200 N per person. Means shall be provided to prevent uncontrolled movement of the guards during opening and closure. When the front guards are closed, the work platform in its entirety shall comply with EN 280:2013+A1:2015, 5.6.2. When the front guards are opened, this shall include the associated toe guards. The floor of the work platform shall be flat and clear from permanent obstacles to prevent trip of persons.
4.2 Movements of the truck and the boom Movements of the truck and the boom shall only be possible when:
a) the front guard(s) is(are) fastened in the closed position given in EN 280:2013+A1:2015, 5.6.2; or
b) all persons permitted on the work platform are in the safety operator position.
Front guard(s) shall be interlocked and the safety operator position shall be monitored by means of a safety device complying with requirements given in 5.11 of EN 280:2013+A1:2015 for 5.6.3.
4.3 Restraint devices 4.3.1 Personal protective equipment The work platform shall be provided with a restraint device to maintain each permitted person within the work platform and prevent them from leaning over the edge. NOTE EN 360, EN 361 and EN 363 provide requirements for lanyard and harness.
4.3.2 Connection of harnesses and lanyards Means shall be provided to prevent movements of the truck and the boom if any of the harnesses or lanyards are not connected to the anchorages provided on the work platform according to EN 280:2013+A1:2015, 5.6.14. An audible and visual warning shall be provided on the truck and the work platform when any of the lanyards or harnesses are not connected when in MEWP function mode given in EN 1459-3:2015, 4.1. There shall be no provisions for the operator to cancel a warning.
4.3.3 Fix harnesses and lanyards Subclause
4.3.2 is not required if harness and lanyard cannot be disconnected without tools between each other and from the anchorages provided on the work platform. In this case a safety sign according to 6.2.1 shall be provided at the control position on the work platform each time the MEWP function mode given in EN 1459-3:2015, 4.1 is activated.
4.4 Duplicate controls
The controls at the operating position in the cab of the truck and the platform controls shall be interlocked so it is possible to operate from only one control position at the same time. It shall only be possible to operate the truck and the boom movements from the cab when a hold-to-run control device is actuated as enabling device from the control position in the work platform. This device shall be designed to prevent unintended actuation and sustained involuntary operation, and in a way that defeat is hindered. This mode of operation shall be set using a safety device situated in the work platform complying with the requirements given in 5.11 of EN 280:2013+A1:2015 for 5.7.4 and shall not disable the MEWP function mode given in EN 1459-3:2015, 4.1. If the platform is designed to be used also with less than the maximum number of persons allowed, means shall be provided on the platform to select the number of persons in the work platform. The selection shall be possible only when the platform is at the access position. If no selection is made, the platform shall not move from the access position.
5.1 General Verification shall be carried out on each type of truck and work platform combination.