Tennant M17 Series Training manual

IB 9021689 (10- 2021) 1
INSTRUCTION BULLETIN
No. 9021689
Machine: M17/T17
Published: 10- 2021
Rev. 00
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.
NOTE: Numbers in parenthesis ( ) are reference numbers for parts listed in Bill of Materials.
Installation instructions for kit number 9021686
Kit installation must be performed by TennantTrue

service or an authorized service provider.
SYNOPSIS:
This kit contains the parts needed to replace power steering motor on
M17 sweeper- scrubbers (NA 012479- ) (EU U00726- )
T17 scrubbers (equipped with power steering) (NA 014650- ) (EU U01607- ) and
M17 sweeper- scrubbers (NA 000000- 012477) (EU U00000- U00725)
T17 scrubbers (NA 011000- 014649) (EU U00400- U01606)
that have been updated with 9018436- KIT, FIELD INSTALL, POWER STEERING.
Please follow step-by-step instructions.
SPECIAL TOOLS / CONSIDERATIONS: NONE
(Estimated time to complete: 1.5 hours)
PROTECT THE ENVIRONMENT
Please dispose of packaging materials, used machine components
such as batteries and fluids in an environmentally safe way according
to local waste disposal regulations.
Always remember to recycle.
PREPARATION:
1. Remove the access panel from the machine.
Set the access panel and hardware aside.
(Fig. 1)
FIG. 1
2. Turn on the machine, drive the machine so
the drive wheel (front wheel) is oriented
straight out from the front of the machine, turn
off the machine, set the parking brake, and
remove the key. (Fig. 2)
FIG. 2

IB 9021689 (10- 2021)2
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and remove key.
3. Disconnect the battery cable from the
machine.
WARNING: Always disconnect battery
cables from machine before working on
electrical components.
4. Disconnect the lower power steering shaft
from the bottom power steering motor shaft.
Set the SEMS M8 hex screw aside. (Fig. 3)
FIG. 3
5. Disconnect the bottom of the power steering
top shaft from the power steering motor. Set
the SEMS M8 hex screw aside. (Fig. 4)
FIG. 4
6. Remove the five SEMS M8 hex screws
securing the power steering motor assembly
to the steering support channel. Set the
SEMS M8 hex screws aside. (Fig. 5)
FIG. 5
7. Disconnect all harness connections from the
power steering motor.
8. Remove the power steering motor from the
motor support bracket. Set the motor support
bracket aside. Discard the power steering
motor and the four M6 hex screws and flat
washers. (Fig. 6)
Discard
Discard
Set aside
FIG. 6

IB 9021689 (10- 2021) 3
INSTALLATION:
1. Use four M6 hex screws (1) and four flat
washers (2) install the power steering motor
(4) onto the motor support bracket. (Fig. 7)
Motor support
bracket
1
2
4
FIG. 7
2. Connect the power steering harness green
wire to the power steering motor (4) negative
(- ) terminal and the blue wire to the power
steering motor positive (+) terminal.
(Fig.8/Fig.9/Fig.11)
FIG. 8
FIG. 9
3. Use five saved SEMS M8 hex screws to
install the power steering motor assembly
onto the steering support channel. Torque the
SEMS M8 hex screws to 22 Nm (16 ft lbs).
(Fig. 10)
FIG. 10
4. Connect the power steering harness encoder
connector to the power steering motor (10).
(Fig. 11)

IB 9021689 (10- 2021)4
FIG. 11

IB 9021689 (10- 2021) 5
5. Install bottom of the power steering top shaft
onto the power steering motor (4). (Fig. 12)
FIG. 12
6. Tighten hardware to secure the power
steering motor (4) into the bottom of the
power steering top shaft. Torque the SEMS
M8 hex screws to 22 Nm (16 ft lbs). (Fig. 13)
FRONT
4
powersteering
top shaft
FIG. 13
7. Remove the two M8 hex screws from the
lower power steering shaft. Set the M8 hex
screws aside. (Fig. 14)
FIG. 14
8. Orient the steering wheel so it is positioned
correctly on the machine. (Fig. 15)
FIG. 15
9. Install the lower power steering shaft onto the
power steering motor (4) bottom shaft.
(Fig. 16)
FIG. 16

IB 9021689 (10- 2021)6
10.Tap up on the lower power steering shaft up
until the power steering motor (4) shaft is
flush with the surface on the lower power
steering shaft as shown. (Fig. 17)
FIG. 17
11. Tighten hardware to secure the lower power
steering shaft onto the power steering motor
(4) shaft. Torque the SEMS M8 hex screws to
22 Nm (16 ft lbs). (Fig. 17)
12.Reinstall the two previously removed M8 hex
screws into the lower power steering shaft.
Torque the SEMS M8 hex screws to 22 Nm
(16 ft lbs). (Fig. 18)
FIG. 18
13.Reconnect the battery cable to the machine.
14.Calibration: Connect power steering wire
harness YEL- 1 wire and YEL- 2 wire located
on the power steering harness (3) to the
switch (16). (Fig. 19/Fig. 20/Fig. 11)
FIG. 19
YEL- 2 wire
(COMMON)
YEL- 1 wire
(NORM OPEN)
FIG. 20
15.Calibration: Turn the key to the ON position
16.Calibration: Turn OFF all machine
functions and options.All functions/options
(spray nozzle, lights, etc...) must be OFF
before the power steering system can be
calibrated. The power steering system will not
calibrate if functions/options are on.

IB 9021689 (10- 2021) 7
17.Calibration: Quickly squeeze/activate the
switch (3) lever four times within 3 seconds.
The power steering controller (14) LED will
illuminate each time the snap switch lever is
squeezed. The LED will remain illuminated for
2 seconds the fourth time the snap switch
lever is squeezed to show the sequence is
completed. (Fig. 19)
FIG. 21
18.Calibration: Test the machine. Turn the
steering wheel in the complete range of
motion in both directions. The machine should
steer smoothly and with the same amount of
resistance in both directions. Recenter the
steering wheel and repeat calibration if the
steering is not functioning smoothly with the
same amount of resistance when turned in
either direction. Do not turn on any machine
functions/options when testing the machine.
NOTE:To complete calibration, all functions and
options must remain OFF until after the key is
turned to the OFF position.
19.Calibration: Turn the key to the OFF
position.
20.Calibration: Disconnect the power steering
wire harness (19) YEL- 1 wire and YEL- 2 wire
from the snap switch (3).
21.Reinstall the access panel onto the machine.

IB 9021689 (10- 2021)8
FIG. 22

IB 9021689 (10- 2021) 9
Bill Of Materials For Kit, Steering Motor, CI [M17/T17] - 9021686
Ref.
Tennant
Part No. Description Qty.
112274 )Screw, Hex, M6 X 1.00 X 20, 8.8, NL 4
2 32483 Washer, Flat, 0.25, SAE 4
3 1008142 Switch, Snap, 25A SPDT 1
41244815 Motor, Steering, 36V 1
TENNANT COMPANY
10400 Clean Street
Eden Prairie, MN 55344- 2650