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TROWEL TECHNIQUE

TROWEL TECHNIQUE

TROWEL TECHNIQUE

TROWEL TECHNIQUE

Practice makes permanent. To practice using the NXT-90 find a clean, flat, and smooth
existing concrete floor. A rough floor will damage your trowel blades and create excessive
vibration. Unfold the handle, start the engine and learn the feel and control of your Nexus
Power Trowel, starting at low throttle and working up to full throttle.

The easiest direction to pull the NXT-90 is backward. Pulling gently on the handle while
holding it with both hands will cause it to float toward you.

The handle will try to rotate away from you while the engine is running, so
hold it firmly to keep it steady.

If the entire trowel is pulling to the right or left, balance it by lifting up or pressing down on
the handle. Do not try to stop the sideways motion of the trowel with direct sideways force,
balance it by lifting or pressing down on the handle. Practice holding the trowel steady in
one place for a few minutes at a time.

To move sideways it is always best to let the trowel do the work. The rotating blades
create a sideways force when the trowel is leaned forward or backward. Lift up on the
handle to make the machine go left, or press downward on the handle to make the trowel
go to the right. The best way to remember this is “Lift to go Left”. Never press or lift with
enough force to make the blades edges dig into the concrete.

FIGURE 12:

FIGURE 12:

FIGURE 12:

FIGURE 12: STEERING THE NXT-90

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Содержание NXT-90

Страница 1: ...ANGUAGE Document NEX 0001 Created Date 01 2008 Revision 1 Revision Date 08 2009 OI N09101 POWER TROWEL POWER TROWEL POWER TROWEL POWER TROWEL Model Model Model Model NXT NXT NXT NXT 90 90 90 90 Operator s Manual Operator s Manual Operator s Manual Operator s Manual ...

Страница 2: ...RISON INC ALL RIGHTS RESERVED Revision Rev Date Details Approved 0 01 31 2008 Initial document release G M T 1 08 17 2009 Relocation D M No part of this work may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording or by any information storage or retrieval system without the prior written permission of Bartell Morrison Inc unless s...

Страница 3: ...ICE 5 0 STORAGE AND SERVICE 5 0 STORAGE AND SERVICE 29 29 29 29 5 1 PREVENTATIVE MAINTENANCE AND ROUTINE SERVICE 30 5 2 ROUTINE SERVICE INTERVALS 32 5 3 STORAGE 32 5 4 TROWEL ARM ADJUSTMENT 33 CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY 36 36 36 36 NOTES NOTES NOTES NOTES 38 38 38 38 TABLE OF ILLUSTRATIONS FIGURES TABLE OF ILL...

Страница 4: ...Toll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 4 of 38 This page intentionally left blank ...

Страница 5: ...ALERT SYSTEM PRODUCT SAFETY AND HAZARD ALERT SYSTEM PRODUCT SAFETY AND HAZARD ALERT SYSTEM PRODUCT SAFETY AND HAZARD ALERT SYSTEM This Operating Manual presents Product Safety and Hazard Alert Information in accordance with American National Standards Institute and International Organization for Standardization recommendations as laid out in ANSI Z535 and ISO 3864 The callouts of DANGER WARNING CA...

Страница 6: ...nd or property damage Any modifications to the equipment must be performed by the manufacturer or an authorized dealer and must be authorized in advance by the manufacturer The equipment should be serviced cleaned and stored as detailed by this manual The manufacturer of this equipment cannot be held responsible for any damages resulting from misuse abuse or neglect 1 2 1 2 1 2 1 2 SAFETY FEATURES...

Страница 7: ... 5455 Fax 905 458 5484 Page 7 of 38 1 1 1 1 3 3 3 3 NXT NXT NXT NXT 90 90 90 90 DIMENSIONS DIMENSIONS DIMENSIONS DIMENSIONS FIGURE 1 FIGURE 1 FIGURE 1 FIGURE 1 FOLDED DIMENSIONS HONDA GC160 MODEL SHOWN 38 3 4 98cm 27 5 8 70cm 41 3 8 105cm ...

Страница 8: ...ll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 8 of 38 FIGURE 2 FIGURE 2 FIGURE 2 FIGURE 2 OPERATING DIMENSIONS HONDA GC160 MODEL SHOWN 28 1 8 71 5cm 38 3 4 98cm 37 1 2 95cm 64 3 8 163 5cm ...

Страница 9: ...r For more details please refer to the engine manual included with your NXT 90 Missing manuals can be replaced by your equipment manufacturer directly or via your local dealer o Clutch and Belt Clutch and Belt Clutch and Belt Clutch and Belt The engine of the NXT 90 drives a centrifugal clutch allowing the engine to idle without turning the spider The drive belt when engaged with the clutch drives...

Страница 10: ... replaced Handle Handle Handle Handle When unfolded and locked the handle provides the operator with easy and ergonomic control over the Power Trowel When folded over and locked in place the handle becomes a hoist lift point and a protective cage for the engine during transportation Please refer to the Trowel Technique section for details on how to properly use the NXT 90 Throttle Lever Throttle L...

Страница 11: ...tempt to lift it by yourself as this can result in back strain and other injuries as well as damage to equipment and property Ensure the engine is not running and has cooled down before lifting FIGURE 4 FIGURE 4 FIGURE 4 FIGURE 4 PROPER LIFTING The NXT 90 should be lifted by mechanical means With the handle folded and locked in position the lift point can be used with a grab hook or sling to lift ...

Страница 12: ...of each page of this manual Technical service bulletins user s manual updates and other information are posted on the Nexus website http www nexusequip com http www nexusequip com http www nexusequip com http www nexusequip com Check this website periodically for updates or other potentially useful information about your equipment NEVER use the NXT 90 in an enclosed space with poor air flow such a...

Страница 13: ...e immediately with appropriate Nexus parts NEVER put hands feet or other appendages inside the guard ring or belt guard while the engine is running even at idle or with protective clothing as serious injury may result NEVER wear loose fitting clothing or jewellery around rotating equipment such as the NXT 90 as it may become entangled in the machinery resulting in serious injury NEVER fuel the NXT...

Страница 14: ...bed Empty the fuel tank if transporting it over long distances NEVER attempt to lift the NXT 90 alone always lift with a mechanical aid 2 1 2 1 2 1 2 1 SAFETY AND OPERATIONAL LABELS SAFETY AND OPERATIONAL LABELS SAFETY AND OPERATIONAL LABELS SAFETY AND OPERATIONAL LABELS FIGURE 5 FIGURE 5 FIGURE 5 FIGURE 5 LABEL LOCATIONS HONDA GC160 MODEL SHOWN ...

Страница 15: ...odel Number NXT 90 5 5 5 5 WARNING Use appropriate protective clothing including hearing protection shatter resistant eyewear steel toed boots and protective handwear 6 6 6 6 WARNING Keep hands and feet clear of rotating blades 7 7 7 7 DANGER Keep hands clear of drive belt while engine running 8 8 8 8 Throttle control lever movement Stop Slow Fast 9 9 9 9 WARNING Hot surface do not touch ...

Страница 16: ...ventilated environment 11 11 11 11 CAUTION Mechanical lift point hoist by this point only 12 12 12 12 Maximum sound level 105dB 13 13 13 13 WARNING Shut down engine and allow sufficient cooling time before refueling this equipment 14 14 14 14 CAUTION Read and understand entire operator s manual before using or servicing this equipment ...

Страница 17: ...ency the engine will shut down to prevent runaway equipment ENGINE RUN ENGINE RUN ENGINE RUN ENGINE RUN ENGINE RUN ENGINE RUN ENGINE RUN ENGINE RUN ENGINE STOP ENGINE STOP ENGINE STOP ENGINE STOP FIGURE 6 FIGURE 6 FIGURE 6 FIGURE 6 DEADMAN HANDLE OPERATION It should be noted that the NXT 90 will immediately begin to rotate in the opposite direction to the blades when both of the handles are releas...

Страница 18: ...fore the engine runs NEVER attempt to add fuel or oil to the engine while it is running Shut down the engine and allow it to cool down before opening the fuel cap for refueling NEVER smoke while handling gasoline If gasoline is spilled anywhere on or around the equipment wipe it up and allow the fumes to clear before starting the engine 3 1 3 1 3 1 3 1 USING THE FOLDING HANDLE USING THE FOLDING HA...

Страница 19: ...lower the hook beneath the grab bar and bring it forward until the lock arm is completely free of the grab bar see Figure 8 3 Unfold the handle completely Fold the lock arm down to be flush with the upper handle see Figure 9 4 Insert the lock screw with hand knob near the joint into the nut on the lower handle Turn the hand knob clockwise until it is fully tightened see Figure 10 Do not overtighte...

Страница 20: ...Toll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 20 of 38 FIGURE 9 FIGURE 9 FIGURE 9 FIGURE 9 UNFOLDING THE HANDLE FIGURE 10 FIGURE 10 FIGURE 10 FIGURE 10 HANDLE LOCK KNOB ...

Страница 21: ...he throttle to idle For the Honda GX160 and Vanguard 6 5 engines this means setting the throttle lever to minimum For the Honda GC160 which includes a shut down switch at the minimum throttle setting set the throttle lever to the idle position about 1 3 away from minimum setting Observe the throttle lever on the engine to better judge what position is appropriate ALWAYS set the throttle to idle du...

Страница 22: ...tate away from you while the engine is running so hold it firmly to keep it steady If the entire trowel is pulling to the right or left balance it by lifting up or pressing down on the handle Do not try to stop the sideways motion of the trowel with direct sideways force balance it by lifting or pressing down on the handle Practice holding the trowel steady in one place for a few minutes at a time...

Страница 23: ...ve a footprint deeper than about 3mm 1 8 inch The ideal way to trowel is to work backward traveling up and down the slab pulling the Power Trowel toward you and making elongated overlapping sweeps see Figure 13 This allows you to thoroughly cover your footprints in the concrete as you walk Work steadily and patiently going too fast will result in poor consolidation and an unattractive finish Each ...

Страница 24: ...Toll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 24 of 38 FIGURE 14 FIGURE 14 FIGURE 14 FIGURE 14 TROWELLING PASS DIRECTION ...

Страница 25: ...ers and ordering information Do not let your Power Trowel sit motionless in wet concrete for extended periods The blades will become stuck as the concrete cures and can damage the drivetrain upon restart If your Power Trowel does become stuck work the blades free by leaning it in several directions FIGURE 1 FIGURE 1 FIGURE 1 FIGURE 15 5 5 5 TYPICAL FINISH BLADE To reverse a blade follow these step...

Страница 26: ...e yellow thread plug in the old hole and re tighten the outer retaining bolt 4 3 4 3 4 3 4 3 FLOAT BLADES FLOAT BLADES FLOAT BLADES FLOAT BLADES Clip on float blades are an optional addition to your NXT 90 allowing you to begin the trowelling operation much sooner after the concrete pour than the standard finishing blades The increased surface area of the float blades allows your NXT 90 to float o...

Страница 27: ...ective tool for floating the concrete The float pan fits to the existing finishing blades with minimal effort As the concrete cures panning will become more taxing on the NXT 90 At this time switch to using float blades or finish blades FIGURE 1 FIGURE 1 FIGURE 1 FIGURE 19 9 9 9 TYPICAL NXT 90 FLOAT PAN Avoid lifting the NXT 90 with the float pan installed The pan may be secure enough to slide the...

Страница 28: ...blade pitch turn the pitch knob clockwise If the pitch is initially at the lowest setting several full turns will be required before the blades start to raise To lower the blade pitch turn the pitch knob counterclockwise see Figure 20 FIGURE FIGURE FIGURE FIGURE 20 20 20 20 PITCHING THE TROWEL BLADES The timing and degree of blade pitching depends entirely on your specific job site conditions conc...

Страница 29: ... entirely self contained and sealed It should not be opened or serviced by anyone except authorized repair shops The gearbox lubricant is in a gel state when the Power Trowel is not in use It only liquefies when the equipment is active Inspection of the sealed components is only necessary if the gearbox becomes oily at the shaft seals Clean the gearbox and look for signs of a leak after prolonged ...

Страница 30: ...ual thoroughly you will find that you can do some of the regular maintenance yourself However when in need of parts or major service be sure to see your Nexus dealer For your convenience we have provided this space to record relevant data about your NXT 90 When in need of parts or service be prepared to provide your serial number Locate the serial number now and record in the space below Date Purc...

Страница 31: ... o o o Pitch control assembly Lubricate o o o o o Engine Check Level o o o o o o Engine oil Change o o o Engine oil filter Replace o o Oil cooler Clean o o o o Cooling Fins Clean o o o o o Check clean o o o o o o Air cleaner Replace o Check o Air Intake Line Replace 2 yrs Check tightness o o Fan Belt Replace 500 hrs Valve clearance Check adjust o o Check Clean o o o o Fuel filter Replace o o Fuel ...

Страница 32: ...riage and surrounding components Use of a power washer will make clean up quick and easy especially if a non stick coating was applied prior to use Dried concrete is most easily cleaned off using Liquid Hammer from Bartell Morrison Inc In the Service Schedule above items that should be checked replaced or adjusted are indicated by o in the appropriate column All Power Trowels have governed engine ...

Страница 33: ...re allows fast and accurate trowel arm calibration Refer to the parts catalogue at the end of this manual for part numbers and ordering information To calibrate the trowel arms of your NXT 90 1 Remove the finishing blades from your NXT 90 2 Remove the spider assembly and remove the four 4 trowel arms from the hub by loosening the set screw for each one 3 On each trowel arm loosen the locking jam n...

Страница 34: ...does move restart at step 5 7 Remove the first trowel arm and repeat for the other three 8 Re install the calibrated trowel arms into the spider hub ensuring that the oil seal is not damaged or dislodged 9 Re fill each of the four 4 trowel arm oil baths through the set screw hole on the spider hub Replace the set screw after filling each one see Figure 23 FIGURE 23 FIGURE 23 FIGURE 23 FIGURE 23 SP...

Страница 35: ...Toll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 35 of 38 This page intentionally left blank ...

Страница 36: ...ps to avoid crushing of parts of the human body EN 418 1993 Safety of Machinery Emergency stop equipment functional aspects Principles for design EN 12100 1 2003 Safety of Machinery Basic Concepts general principles for design Part 1 Basic Terminology methodology EN 12100 2 2003 Safety of Machinery Basic Concepts general principles for design Part 2 Technical Principles EN ISO 4872 1978 Acoustics ...

Страница 37: ... de construção é mantido no a L originale dossier tecnico di construzione è conservato presso Bartell Morrison Inc 375 Annagem Blvd Mississauga Ontario Canada L5T 3A7 Telephone 905 458 5455 Facsimile 905 458 5484 The authorized representative is Le représentant autorisé est Gemachtigd vertegenwoordiger is La representación autorizada es O representante autorizado é Il rappresentate autorizzato Mr ...

Страница 38: ...Toll Free 866 501 1683 Phone 905 458 5455 Fax 905 458 5484 Page 38 of 38 NOTES NOTES NOTES NOTES ...

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