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Summary of Contents for Thwaites Mach 443
- Page 1 3 - 4.5 Tonne (Hydrostatic) Mach 443, Mach 444, Mach 474, Mach 475 Operator’s Instruction Manual Mach 474 - 3.5 Tonne Powerswivel Mach 475 - 3 Tonne Hi-Swivel...
- Page 2 Due to the varied nature of the operation of site dumpers and the absence of an agreed test standard, any figures quoted It is the policy of Thwaites Limited to promote safety in the by Thwaites in relation to vibration values and exposure are operation of its machines and to create a general awareness of for reference purposes only.
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Page 3: Before Operating This Machine
Before operating this machine Read this manual Distributor Contact your Thwaites dealer in case of further questions Learn to operate this machine Ensure you are fit to operate Wear correct safety clothing and ensure that safety equipment is available Complete Checks in Section... - Page 4 Before operating this machine Visually check the machine Are the chassis lock and the skip lock disengaged? Are the controls, crush zone and hydraulic rams clean, and clear of debris? Walk Around The Machine Is the Roll-Over Protective frame (ROPS frame) secure, fully upright and undamaged? Is the seatbelt anchorage secure and serviceable? Are the covers and mudguards secure?
- Page 5 Before operating this machine Mount the machine and check the controls Use the grabrails and foot steps provided to manoevre into seating position. Face the machine at all times when mounting and dismounting Is the engine cover secure and locked? Adjust the seat position for comfort and easy access to controls Fasten the seatbelt.
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Page 6: Layout Of Controls
Layout of controls Control locations & functions Steering wheel. Direction lever - forward = left turn - back = right turn. Lights - twist 1 = sidelights ON - twist 2 = Dipped headlights ON Up = flash. Down = main beam Hazard warning light switch Beacon switch* Foot brake pedal/inching... - Page 7 Control Functions – in depth Seat adjustment Type 1: A – Push down to set driver weight (seat empty) Push fully down and release to reset (seat empty) B – Lift to slide seat assembly forwards/backwards C – Lift to slide cushion forward and set backrest Type 2: E –...
- Page 8 Control Functions – in depth FNR/High and low speed lever – left hand • Push forwards to travel in a forward direction • Lever centred = neutral. • Pull back to travel in a reverse direction Twist lever anti-clockwise (2) for HIGH speed travel Twist lever clockwise (1) for LOW speed travel Hand brake lever –...
- Page 9 Control Functions – in depth Steering wheel – both hands • Turn the wheel clockwise to turn machine to right • Turn the wheel anti-clockwise to turn machine to left Ensure the non-steering hand is on the engine cover grabrail when using the spinner knob for low-speed single-handed steering.
- Page 10 Control Functions – in depth Lowering and raising the folding ROPS frame • Remove linch pins and withdraw frame lock pins • Lower frame and insert lock pins and linch pins in new position • Reverse the procedure to raise the frame •...
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Page 11: How To Start And Stop The Engine
How to START and STOP the engine To start the engine • Set FNR lever to neutral • Depress accelerator pedal fully and turn the key clockwise to the start position ‘S’ All panel lights self-test (illuminate) and should extinguish on start-up. -
Page 12: Preliminary Checks
Preliminary checks Function Checks - Engine ON Brakes • Does the foot brake feel firm? • Does the hand brake keep the machine stationary when applied? Steering • Rotate the steering wheel clockwise and anti-clockwise Electrics • Does the horn sound? •... - Page 13 Driving procedure and safe parking Moving from rest and stopping • Select forward or reverse • Select low ratio • Release hand brake • Slowly depress accelerator and move away • Hold steering wheel with both hands • Remove foot from accelerator pedal •...
- Page 14 DANGER IMMEDIATE HAZARDS WHICH WILL RESULT IN SEVERE PERSONAL INJURY OR DEATH WORKING ON GRADIENTS Powerswivel and Hi-Swivel DO NOT exceed maximum stated gradients DO NOT turn across gradients DO NOT brake suddenly in wet, muddy, icy conditions or when operating on loose surfaces DO NOT run downhill with controls in neutral DO NOT operate raise mechanism on sloping ground...
- Page 15 DANGER IMMEDIATE HAZARDS WHICH WILL RESULT IN SEVERE PERSONAL INJURY OR DEATH VISIBILITY Check ahead and behind machine before operation Be aware of low-visibility areas when operating Before operating, sound the horn to warn people in the immediate area CRUSH ZONE Stay clear of articulation area when the engine is running.
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Page 16: Unloading The Machine
WARNING HAZARDS OR UNSAFE PRACTICES WHICH COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH LOADING THE MACHINE DO NOT exceed machine’s rated capacity Apply hand brake, set transmission to NEUTRAL, turn engine OFF, disembark the machine and STAND CLEAR Clear debris from controls Ensure SAFE STABLE LOW load which allows good visibility. - Page 17 WARNING HAZARDS OR UNSAFE PRACTICES WHICH COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH DRIVING DO NOT drive with NEVER dismount from a the skip tipped moving machine (bulldozing) DO NOT carry Avoid confined work passengers areas - exhaust fumes and noise can be a hazard Site hazards to...
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Page 18: Towing A Trailer
NOT exceed rated payload of machine DO NOT exceed maximum tow bar pull or vertical load Towing must not be carried out on sloping ground Always use a Thwaites-approved towing pin TRANSPORTATION Reverse machine slowly onto a suitable trailer DO NOT drive the machine forwards when loading... - Page 19 CAUTION HAZARDS OR UNSAFE PRACTICES WHICH COULD RESULT IN MINOR PERSONAL INJURY OR PRODUCT OR PROPERTY DAMAGE USING A CRANE TO LIFT THE MACHINE Tip skip fully forward Place the locking channel over the tipping ram-rod, then reset the skip until it is impeded by the channel Engage chassis locking bar Lift using centre eye provided Hi-Swivel...
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Page 20: Towing The Machine
CAUTION HAZARDS OR UNSAFE PRACTICES WHICH COULD RESULT IN MINOR PERSONAL INJURY OR PRODUCT OR PROPERTY DAMAGE CAUTION - MACHINE RECOVERY In order to tow the machine, the high-pressure circuit at the hydrostatic pump must be opened. To open the pump, follow this procedure: At the left side of the pump below the floor plate there is one high- pressure control valve at the top, and another at the bottom. -
Page 21: Troubleshooting
Air in fuel system Check fuel line connections Black engine smoke Air filter clogged (Indicator red) Replace or clean air filter Fuel system defect Contact Thwaites dealer Wrong fuel Replace fuel and filter Engine oil pressure Low oil level Top up engine oil... - Page 22 Data Chart – Hi-Swivel Noise Dimensions (mm) Weight (Kg) Airborne (10 m) A. Length ....................3972 Unladen B. Width ......................1770 Front axle ..................1140 C. Height (ROPS frame & beacon) ..............3140 Rear axle ..................1700 D. Skip lip height ....................1600 Total ....................2840 Width over tyres ....................1750 Laden (including driver at 80 kg) Wheelbase .....................1980 Operator...
- Page 23 Data Chart – Powerswivel Weight (Kg) 3.5T 4.5T Noise Dimensions (mm) 3.5T 4.5T Unladen Airborne (10 m) A. Length ................4010 ..4107 Front axle .................920..1040 B. Width ....................1770 ..1859 Rear axle ................1605..1715 C. Height (ROPS frame & beacon) ............3140 ..3210 Total ................2525..2755 D.
- Page 24 Check condition This machine must be serviced after first 50 hours Normal service intervals: 250 hours 500 hours 1000 hours 2000 hours Contact local Thwaites Distributor for details or www.thwaitesdumpers.co.uk Note: failure to use Thwaites-approved lubricants may invalidate your warranty...
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