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Tennant T16AMR - User Manual

Tennant T16AMR
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IB 9020661 (07- 2021) 1
INSTRUCTION BULLETIN
No. 9020661
Machine: T12/T16/
T16AMR
Published: 07- 2021
Rev. 01
NOTE: DO NOT DISCARD the Parts List from the Instruction Bulletin. Place the
Parts List in the appropriate place in the machine manual for future
reference. Retaining the Parts List will make it easier to reorder
individual p arts and will save th e cost of ordering an entire kit.
NOTE: Numbers in parenthesis ( ) are reference numbers for parts listed in Bill of Materials.
Installation instructions for kit number 9020660, 9020681, 9020685, 9020686, and 9021543
Kit installation must be performed by TennantTrue
service or an authorized service provider.
SYNOPSIS:
This kit contains the parts needed to replace the drive wheel/drive wheel hub on T12/T16/T16AMR
scrubbers.
Please follow step-by-step instructions.
SPECIAL TOOLS / CONSIDERATIONS: NONE
(Estimated time to complete: 1 hour)
PROTECT THE ENVIRONMENT
Please dispose of packaging mat erials , used machine component s
such as bat t er ies and f luids in an envir onment ally saf e way according
to local was t e disposal regulat ions.
Always remember to recycle.
PREPARATION:
1. If scrub head is not raised, turn key switch
ON, completely raise the scrub head, and turn
key switch OFF.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and remove key.
2. T urn the steering wheel as far to the left as
possible.
3. Remove the main scrub brush(es) and side
scrub brush(es) from the machine. Set all
scrub brushes aside.
INSTALLATION:
1. Place a chock behind both rear tires.
2. Remove the socket screws (Qty. 4) from the
front wheel assembly. Discard the socket
screws. (Fig. 1)
FIG. 1

Questions and Answers

Overview

This document provides installation instructions for a drive wheel/drive wheel hub replacement kit for Tennant T12, T16, and T16AMR scrubbers. The kit installation is intended to be performed by TennantTrue® service or an authorized service provider.

Function Description:

The primary function of this kit is to replace the drive wheel and its associated hub on the specified Tennant scrubber models. This replacement is crucial for maintaining the machine's mobility and operational efficiency. The drive wheel is a key component in the scrubber's propulsion system, enabling it to move forward, reverse, and maneuver during cleaning operations. A worn or damaged drive wheel or hub can impair the machine's movement, reduce cleaning effectiveness, and potentially lead to further mechanical issues. The replacement process involves removing the old wheel and hub assembly and installing new components, ensuring the scrubber can continue to operate smoothly and reliably.

Important Technical Specifications:

The document details several technical specifications related to the installation process, particularly concerning torque values for fasteners.

  • Socket Screws (Hub Installation): The six socket screws used to install the new hub onto the new wheel must be torqued to 20 Nm (14.75 ft. lbs.). This precise torque ensures a secure and stable connection between the hub and the wheel, critical for the drive wheel's structural integrity and safe operation.
  • Hex Screws (Wheel Assembly): The four hex screws that secure the wheel to the drive wheel assembly must be tightened to 40 Nm (29.5 ft. lbs.). These screws should be tightened in a star pattern to ensure even pressure distribution and proper seating of the wheel. The document notes that achieving final torque may require the machine to be lowered to the floor if it was jacked up during installation, highlighting the importance of proper torque for operational safety and longevity.
  • Kit Components: The Bill of Materials lists various part numbers for different kits, indicating variations based on machine model (T12, T16, T16AMR) and wheel color (Red or Blue). Key components include:
    • Vr, Hub, Alm (Hub, Aluminum) - Part No. 9020657
    • Vr, Screw Kit (Screw Kit) - Part No. 9020658 or 9021565 (for T16AMR)
    • Vr, Tire Kit, Puller (Tire Kit, Puller) - Part No. 9008544
    • Vr, Wheel, Pyu (Wheel, Polyurethane) - Various part numbers depending on size and color:
      • [300X100 Red] (300mm x 100mm Red) - Part No. 9008545
      • [300X100 Blue] (300mm x 100mm Blue) - Part No. 9012602
      • [250X90 Blue] (250mm x 90mm Blue) - Part No. 9012603
      • [250X90 Red] (250mm x 90mm Red) - Part No. 9011048 These specifications ensure that the correct parts are used for each specific machine model and that they are installed with the appropriate fastening forces to guarantee optimal performance and safety.

Usage Features:

The installation process itself highlights several usage features related to the machine's design and serviceability:

  • Accessibility: The design allows for the drive wheel assembly to be accessed by jacking up the front end of the machine. The steering wheel can be turned to the left or right to facilitate easier access to different sides of the drive wheel assembly, demonstrating a consideration for maintenance access.
  • Specialized Tools: The use of a "tire puller kit" (3) is specified for pressing the old wheel from the drive wheel assembly and for aligning the new wheel with dowels. This indicates that specialized tools are required for efficient and safe removal and installation, suggesting a design that prioritizes precision and prevents damage during servicing.
  • Operational Testing: After installation, the machine must be started and tested to ensure it moves freely in both forward and reverse directions, and when cornering. This confirms that the replacement has restored full functionality and maneuverability, which are core usage features of the scrubber.
  • Brush Removal: The instruction to remove main and side scrub brushes before starting the procedure indicates that these components might obstruct access or be damaged during the wheel replacement, suggesting a modular design where components can be easily detached for maintenance.
  • Scrub Head Position: The requirement to raise the scrub head before starting work ensures that the machine is in a safe and accessible configuration for maintenance, preventing accidental engagement or obstruction.

Maintenance Features:

The document outlines several key maintenance features:

  • Step-by-Step Instructions: The detailed, numbered instructions provide a clear guide for technicians, minimizing errors and ensuring a consistent installation process. This structured approach is a fundamental maintenance feature.
  • Estimated Time: An estimated completion time of "1 hour" is provided, which helps in planning maintenance schedules and managing service expectations.
  • Safety Precautions: Numerous safety warnings are integrated throughout the instructions:
    • "FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, and remove key."
    • "FOR SAFETY: When servicing machine, block machine tires before jacking machine up. Use a hoist or jack that will support the weight of the machine. Jack machine up at designated locations only. Support machine with jack stands." These emphasize the importance of safety during maintenance, protecting both the technician and the machine.
  • Environmental Protection: A dedicated section, "PROTECT THE ENVIRONMENT," instructs on the proper disposal of packaging materials, used machine components, batteries, and fluids according to local waste disposal regulations, and encourages recycling. This highlights a commitment to environmentally responsible maintenance practices.
  • Parts List Retention: The note "DO NOT DISCARD the Parts List from the Instruction Bulletin. Place the Parts List in the appropriate place in the machine manual for future reference. Retaining the Parts List will make it easier to reorder individual parts and will save the cost of ordering an entire kit." is a crucial maintenance feature. It ensures that future repairs or replacements can be easily managed by having immediate access to part numbers, reducing downtime and costs associated with identifying correct components.
  • Post-Installation Checks: The instruction to re-install scrub brushes and test the machine's movement after the wheel replacement is a vital quality control step in maintenance, ensuring that the repair is complete and the machine is fully operational.
  • Jack Stand Usage: The explicit instruction to use jack stands and to jack the machine at designated locations underscores the importance of stable support during maintenance, preventing accidents and damage.
  • Discarding Old Parts: The instruction to "Discard the removed drive wheel assembly" indicates that these components are not repairable or reusable, streamlining the maintenance process by clearly defining the end-of-life for certain parts.

Tennant T16AMR Specifications

General IconGeneral
BrandTennant
ModelT16AMR
CategoryScrubber
LanguageEnglish

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