Nexus NXT-90 User manual

ORIGINAL
ORIGINALORIGINAL
ORIGINAL LANGUAGE
LANGUAGE LANGUAGE
LANGUAGE
Document #:
NEX
-
0001
Created Date: 01/2008
Re ision: 1
Re ision Date: 08/2009
OI-N09101
POWER TROWEL
POWER TROWELPOWER TROWEL
POWER TROWEL
Model
ModelModel
Model:
::
: NXT
NXTNXT
NXT-
--
-90
9090
90
Operator’s Manual
Operator’s ManualOperator’s Manual
Operator’s Manual

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 2 of 38
Bartell Morrison Inc.
Bartell Morrison Inc.Bartell Morrison Inc.
Bartell Morrison Inc.
375 Annagem Bl d.
Mississauga, Ontario, Canada
L5T 3A7
Toll Free (N.A.): [phone]
Phone: [phone]
Facsimile: [phone]
ORIGINAL LANGUAGE OPERATING INSTRUCTIONS FOR
NEXUS WALK-BEHIND POWER TROWELS © 2008 BY
BARTELL MORRISON INC.
ALL RIGHTS RESERVED.
Re ision Re . Date Details Appro ed
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
retrie al system without the prior written permission of Bartell
Morrison Inc. unless such copying is permitted by federal
copyright laws.
Address inquiries or reference permissions care of:
Bartell Morrison Inc., 375 Annagem Bl d., Mississauga,
Ontario, Canada, L5T 3A7

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 3 of 38
TABLE OF CONTENTS:
TABLE OF CONTENTS:TABLE OF CONTENTS:
TABLE OF CONTENTS:
PRODUCT SAFETY
PRODUCT SAFETYPRODUCT SAFETY
PRODUCT SAFETY 5
55
5
1.0 MEET THE NEXUS NXT
1.0 MEET THE NEXUS NXT1.0 MEET THE NEXUS NXT
1.0 MEET THE NEXUS NXT-
--
-90 POWER TROWEL
90 POWER TROWEL90 POWER TROWEL
90 POWER TROWEL 6
66
6
1.1 EQUIPMENT USE AND CARE 6
1.2 SAFETY FEATURES 6
1.3 NXT-90 DIMENSIONS 7
1.4 NXT-90 MAIN COMPONENTS 9
1.5 LIFTING THE NXT-90 11
2.0 SAFETY
2.0 SAFETY2.0 SAFETY
2.0 SAFETY 12
1212
12
2.1 SAFETY AND OPERATIONAL LABELS 14
2.2 DOUBLE-DEADMAN SAFETY HANDLE 17
3.0 SETTING UP THE NXT
3.0 SETTING UP THE NXT3.0 SETTING UP THE NXT
3.0 SETTING UP THE NXT-
--
-90
9090
90 18
1818
18
3.1 USING THE FOLDING HANDLE 18
3.2 STARTING THE NXT-90 21
4.0 TROWEL TECHNIQUE
4.0 TROWEL TECHNIQUE4.0 TROWEL TECHNIQUE
4.0 TROWEL TECHNIQUE 22
2222
22
4.1 TROWELLING 23
4.2 POWER TROWEL BLADES 25
4.3 FLOAT BLADES 26
4.4 FLOAT PANS 27
4.5 BLADE PITCH 28
5.0 STORAGE AND SERVICE
5.0 STORAGE AND SERVICE5.0 STORAGE AND SERVICE
5.0 STORAGE AND SERVICE 29
2929
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 CONFORMITYCE DECLARATION OF CONFORMITY
CE DECLARATION OF CONFORMITY 36
3636
36
NOTES
NOTESNOTES
NOTES 38
3838
38
TABLE OF ILLUSTRATIONS & FIGURES
TABLE OF ILLUSTRATIONS & FIGURESTABLE OF ILLUSTRATIONS & FIGURES
TABLE OF ILLUSTRATIONS & FIGURES
FIGURE PG. FIGURE PG.
FIGURE 1: FOLDED DIMENSIONS. . . . . . . 7 FIGURE 13: IDEAL TROWELLING MOTION. 23
FIGURE 2: OPERATING DIMENSIONS. . . . 8 FIGURE 14: TROWELLING PASS DIR. . . . . 24
FIGURE 3: MAJOR COMPONENTS. . . . . . . 9 FIGURE 15: TYPICAL FINISHING LADE. . 25
FIGURE 4: PROPER LIFTING. . . . . . . . . . . 11 FIGURE 16: LOOSEN RETAINING OLTS. . 25
FIGURE 5: LA EL LOCATIONS. . . . . . . . . . 14 FIGURE 17: ROTATE THE LADE. . . . . . . . 26
FIGURE 6: DEADMAN HANDLE OPER. . . . 17 FIGURE 18: TYPICAL FLOAT LADE. . . . . . 26
FIGURE 7: FOLDED HANDLE FEATURES. 18 FIGURE 19: TYPICAL FLOAT PAN. . . . . . . . 27
FIGURE 8: UNLOCKING THE AR. . . . . . . 19 FIGURE 20: PITCHING THE LADES. . . . . . 28
FIGURE 9: UNFOLDING THE HANDLE. . . . 20 FIGURE 21: TROWEL ARM LIFT ASSY. . . . 33
FIGURE 10: HANDLE LOCK KNO . . . . . . . 20 FIGURE 22: ARM ADJUSTMENT FIXTURE. 33
FIGURE 11: PULL-STARTING THE NXT-90 21 FIGURE 23: SPIDER ASSY OIL ATH FILL. 34
FIGURE 12: STEERING THE NXT-90. . . . . 22

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 4 of 38
This page intentionally left blank

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 5 of 38
PRODUCT SAFETY
PRODUCT SAFETYPRODUCT SAFETY
PRODUCT SAFETY
READ OPERA
READ OPERAREAD OPERA
READ OPERATING INSTRUCTIONS
TING INSTRUCTIONSTING INSTRUCTIONS
TING INSTRUCTIONS
Read and understand this entire manual before attempting to
operate or ser ice the equipment described herein. Failure to
follow these operating instructions could result in serious injury or
death. Store this manual with the machine and ensure it is
apparent and a ailable to any users.
CALIFORNIA PROPOSITION 65 WARNING
CALIFORNIA PROPOSITION 65 WARNINGCALIFORNIA PROPOSITION 65 WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust, some of its constituents, and certain ehicle
components, contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproducti e
harm.
PRODUCT SAFETY AND HAZARD 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, CAUTION, and NOTE must be followed to reduce or a oid the
potential for personal injury, equipment damage, or ser ice-related equipment failures.
Safety Hazard Ale
Safety Hazard AleSafety Hazard Ale
Safety Hazard Alert:
rt:rt:
rt:
Alerts the reader to
personal injury hazards
and other important,
potentially life-sa ing
information.
DANGER:
DANGER:DANGER:
DANGER:
Beware of a hazardous
situation that WILL result in
serious personal injury or
death.
WARNING:
WARNING:WARNING:
WARNING:
Beware of a hazardous
situation that COULD
result in serious personal
injury or e en death.
CAUTION:
CAUTION:CAUTION:
CAUTION:
Beware of a hazardous
situation that could result in
minor personal injury or
equipment damage.

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 6 of 38
1.0
1.01.0
1.0 MEET T
MEET TMEET T
MEET THE NEXUS
HE NEXUS HE NEXUS
HE NEXUS NXT
NXTNXT
NXT-
--
-90
9090
90 POWER TROWEL
POWER TROWEL POWER TROWEL
POWER TROWEL
The equipment depicted in these instructions is a pedestrian controlled, gasoline engine
powered assembly including a rotor on which blades are attached that contact an uncured
concrete surface. The rotor turns around a central shaft when under power and is
supported through a worm gear speed reducer. For control of this assembly a handle is
pro ided for the operator to grasp and manipulate the tra el of the machine on the
concrete surface. The assembly includes safety de ices in accordance with North
American and International standards.
1.1
1.11.1
1.1 E
EE
EQUIPMENT
QUIPMENT QUIPMENT
QUIPMENT USE
USEUSE
USE AND CARE
AND CARE AND CARE
AND CARE
The Nexus NXT-90 Power Trowel is designed for use on uncured concrete. It should be
operated at all times in accordance with the instructions detailed in this manual:
• Use of this equipment for any purpose other than that stated within creates the risk
of personal injury and/or property damage.
• Any modifications to the equipment must be performed by the manufacturer or an
authorized dealer and must be authorized in ad ance by the manufacturer.
• The equipment should be ser iced, 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
1.21.2
1.2 SAFETY FEATURES
SAFETY FEATURESSAFETY FEATURES
SAFETY FEATURES
The Nexus NXT-90 Power Trowel is equipped with safety guards in accordance with North
American and International standards. The main safety ring protects the blades from
collisions with solid objects, but more importantly protects the operator from the blades.
The belt guard protects the operator from the main dri e belt. The handle is equipped with
a “double-deadman” operator presence system as standard equipment. The use and
function of this system is co ered in the next section.
NEVER
NEVERNEVER
NEVER attempt to disable or circum ent these safety de ices. They are
present for the operator’s protection and any tampering will result in
substantial risk to the operator and all present at the job site. If your NXT-
90 safety de ices ha e been tampered with, do not use the Power Trowel.
Immediately contact your sales representati e to obtain replacement parts
or return the trowel to your dealer for repairs.

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 7 of 38
1
11
1.
..
.3
33
3 NXT
NXTNXT
NXT-
--
-90
9090
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)

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
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)

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 9 of 38
1.4
1.41.4
1.4 NXT
NXTNXT
NXT-
--
-90 MAIN COMPONENTS
90 MAIN COMPONENTS90 MAIN COMPONENTS
90 MAIN COMPONENTS
FIGURE 3:
FIGURE 3:FIGURE 3:
FIGURE 3: NXT-90 MAJOR COMPONENTS (HONDA GC160 MODEL SHOWN)
• Dri etrain:
Dri etrain:Dri etrain:
Dri etrain:
o Engine:
Engine:Engine:
Engine: The NXT-90 Power Trowel is a ailable with three engine options: Briggs
& Stratton
Vanguard 6.5HP, Honda GC160, and Honda GX160. The engine
warranty is pro ided by the manufacturer. 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 ia your local dealer.
o Clutch and Belt:
Clutch and Belt:Clutch and Belt:
Clutch and Belt: The engine of the NXT-90 dri es a centrifugal clutch, allowing
the engine to idle without turning the spider. The dri e belt, when engaged with
the clutch, dri es the gearbox pulley.
o Gearbox:
Gearbox:Gearbox:
Gearbox: The NXT-90 gearbox is completely sealed and designed to a oid any
leakage o er the equipment’s lifetime. The pulley attached to the countershaft
dri es a worm gear that turns the spider. The spider assembly and blade pitch
control hardware attach to main shaft.

Toll Free: [phone] / Phone: [phone] / Fax: [phone]
Page 10 of 38
• Be
BeBe
Belt Guard:
lt Guard:lt Guard:
lt Guard: Designed to protect the operator from the rotating components of the
dri etrain, the belt guard mounts directly to the engine and should ne er be remo ed
during operation.
• Safety Ring:
Safety Ring:Safety Ring:
Safety Ring: Ser es the dual purpose of protecting the rotating spider assembly from
impacts with obstacles, and keeps the operator’s hands and feet out of the path of
the blades. The safety ring is remo able for easier blade maintenance, and is
mounted with rubber shock absorbers to reduce ibration and noise. The safety ring
should always be installed before starting the engine.
• Spider:
Spider: Spider:
Spider: The spider assembly consists of the spider hub and trowel arms, the trowel
blades, the blade pitch arms, and the stabilizer ring. The entire assembly is attached
to the main gearbox shaft ia a single bolt and square key. The trowel blades are
double-edged for extra life and designed for easy replacement. A bent trowel arm will
se erely affect the performance of your Power Trowel, so these can easily be
replaced.
• Handle:
Handle:Handle:
Handle: When unfolded and locked, the handle pro ides the operator with easy and
ergonomic control o er the Power Trowel. When folded o er and locked in place, the
handle becomes a hoist lift point and a protecti e cage for the engine during
transportation. Please refer to the Trowel Technique section for details on how to
properly use the NXT-90.
• Throttle Le er:
Throttle Le er:Throttle Le er:
Throttle Le er: The throttle le er pro ides the operator with quick and reliable control
of the engine speed. The le er will mo e in different directions for different engine
configurations. On the Honda GC160 model of NXT-90, setting the throttle le er to
minimum will shut down the engine, while the other models will simply set the Power
Trowel to idle.
• Double Deadman System:
Double Deadman System:Double Deadman System:
Double Deadman System: Designed to protect the operator and equipment in the
e ent the operator lets go with both hands, the engine will immediately shut down. By
using two deadman handles, the operator can release either hand while holding on
with the other without shutting down the engine. When released, the trowel will begin
to spin freely, but with the engine shut down, e en from full speed, the trowel will
come to a full stop within ½ rotation. Please refer to the Safety section for further
details.