(MEWPS) for tree work - Urban Access

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7 GUIDANCE ON SELECTION OF MEWPsSection 4 gives basic guidance on the FACTORS AFFECTING MACHINE CHOICE.In addition to these basic selection criteria, the trials have identified some particular factors whichshould be considered.Off-road workingIf off-road working is required considerable care needs to be given to ensuring the optimumbase machine is chosen. The base machine should have a minimum of 4 WD. Dependingupon the softness of the ground, either wide tyres or tracks should be considered, the tracksproviding the best floatation.While tracks provide best flotation on softer ground, they are slower which could be ofsignificance if much off road travel is required. If the ground is therefore firm and tracksare not necessary then a wheeled base machine would be more efficient.Stabilisers should have sufficient surface area to ensure they will definitely not sink into theground. This could be particularly dangerous should sinkage occur during operations whenthe operator is working from the basket.Manoeuvrability of base machineWhen working in areas where the space is restricted and in particular in areas where accessto the crown cannot always be achieved from a single position, it is important to ensure themachine chosen can work effectively within the constraints of the site and lack ofmanoeuvrability does not cause unacceptable delay.Working reachIt is essential to ensure the working reach of the boom is sufficient for all the required work.(Note it may be decided to use the MEWP for access to the crown but to work out of thebasket from that position. However this should be recognised at the outset, as optimummachine choice could minimise climbing needs, work and safety risks)Full boom rotation can aid working from more than one tree from one position of the basemachine. This can significantly reduce manoeuvring time.Having articulation in the boom can improve manoeuvrability of the basket in the crown, asit may be possible to lift the basket over obstructing branches. This also may savemanoeuvring time.Basket designBasket rotation can improve the ability to achieve optimum working position in the crown.Therefore, if much in-crown work is required, selection of a design with maximum basketrotation is desirable.35
A see-through grill for the floor of the basket is an important feature when working in trees.This ensures people can be seen below the basket; it will ensure obstacles to manoeuvringin the crown are seen; branches which could catch on the basket or on hydraulic pipes etc.can be seen.36
Page 1 and 2: HSEHealth & SafetyExecutiveUse and
Page 3 and 4: © Crown copyright 2003First publis
Page 5 and 6: ParagraphPage10 RECOMMENDATIONS 431
Page 8 and 9: Use and Effectiveness of MEWPs in A
Page 10 and 11: 2 ADVANTAGES OF USING MEWPSThe rese
Page 12 and 13: 3. FACTORS AFFECTING MACHINE CHOICE
Page 14: For the purposes of selecting a MEW
Page 17 and 18: Plate 1Oaks, site 14.2.2 Site 2An o
Page 19 and 20: Scanlift SL 240This model is a self
Page 21 and 22: Plate 6Teupen Euro B20The machine w
Page 23 and 24: Plate 8Dino 210 XTThe machine was s
Page 25 and 26: The following scoring method was us
Page 27 and 28: MEWPAccessto siteManoeuvrabilityaro
Page 29 and 30: Manoeuvrability in crownAll the mac
Page 31 and 32: The RQG handled each of the sites w
Page 33 and 34: Site 2 caused problems to all MEWPs
Page 36: 5 MODIFICATIONS TO CURRENT WORKING
Page 39 and 40: Construction Training Award (CTA)/
Page 44 and 45: 8 DISCUSSION ON SAFETY AND EVALUATI
Page 46 and 47: 9 CONCLUSIONSMany of the arboricult
Page 48: 9.8 BASKET DESIGNBasket rotation ca
Page 52: 11 ACKNOWLEDGEMENTSThe following pe
Page 55 and 56: DRIVING ON SITEMake sure your MEWP
Page 57 and 58: Positioning of the machine is criti
Page 59 and 60: WarningsIf you are required to work
Page 61 and 62: Positioning of the machine is criti
Page 63 and 64: MEWP ChecklistPart 1 Preparation Ye
Page 65 and 66: It is very important to realise tha
Page 67 and 68: SELECTION OF APPROPRIATE MEWPSite a
Page 69 and 70: Basket designBasket rotation can im
Page 71 and 72: Risk assessmentsThe manager should
Page 73 and 74: When moving the machine under or ne

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