Tennant 8300 Training manual

IB 340485 (03--2010) 1
No. 340485
Machine: 8300
Published: 03--2010
Rev: 01
INSTRUCTION BULLETIN
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 387548 / 9006965
SYNOPSIS:
This kit contains the parts needed to install an update/retrofit kit on the 8300 sweeper/scrubber.
Please follow step-by-step instructions.
SPECIAL TOOLS / CONSIDERATIONS: NONE
(Estimated time to complete: 5 hours)
FIELD ENGINEERING REPORT DETAILS: It is possible for water or moisture to wick itself between the
touch panel material layers. This can cause traces on the touch panel to corrode and short the
backlighting and digital system circuits. The circuit board could also be damaged.
PREPARATION:
(Refer to Fig. 1 through Fig. 6)
SECTION 1:
7300/8300 TOUCH PANEL/CIRCUIT BOARD MOISTURE / CORROSION INSPECTION: (TSB No. 017300--00)
FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off
machine, and remove key.
1. Disconnect battery cables from the batteries.
WARNING: Always disconnect battery cables from machine before working on electrical
components.
2. Remove the touch panel from the machine instrument panel housing.
3. Remove the surrounding rubber bezel. (Refer to FIG. 1)
4. Inspect the lower outside perimeter of the touch panel assembly for green copper oxide formations. Refer to
Fig. 1.
5. Replace the touch panel assembly if excessive corrosion is found.
6. If the touch panel assembly does not need to be replaced, add clear dielectic grease (TENNANT PN# 86385)
to the lower outside perimeter of the touch panel.
7. Clean the inside channel of the bezel and attach the bezel to the touch panel assembly. Wipe any exposed
dielectic grease from the assembly surfaces.
8. Ensure the switch plugs did not pull away from switches, before reinstalling touch panel. Reconnect the touch
panel and the battery cables to the machine.
9. Check the machine functions and run the self test.

IB 340485 (03--2010)2
NOTE: If excessive corrosion is found, and a new panel must be ordered, the machine can be kept operational
by disconnecting and taping 21ORA wire from the backlighting touch panel circuit (backlighting will be
inoperative). This will also prevent damage to the circuit board while waiting for a new touch panel to be
installed.
NOTE: If replacing the touch panel, be sure the new panel edge is treated with a coating before installing.
Inspect all along the lower
edge for green copper oxide.
Remove the rubber bezel from
the edge of the touch panel.
FIG. 1 -- Control Panel Inspection

IB 340485 (03--2010) 3
SECTION 2:
INSTALLATION:
(Refer to Fig. 2 and Fig. 3)
NOTE: Machines with serial numbers after 003053 are already equipped with correct fuses and propel cable.
Check all connection hardware for tightness and proceed to section 3.
FOR SAFETY: Before leaving or servicing machine, stop on level surface and set parking
brake. Then turn off machine and remove key.
1. Secure rear machine cover open with the cover support rod.
2. Disconnect battery cables from the batteries.
WARNING: Always disconnect battery cables from machine before working
on electrical components.
3. Secure side cover on the left side of the machine open with the cover support rod.
4. Open the side door on the left side of the machine.
5. Remove and set aside the detergent tank (option) if necessary.
6. Remove and set aside the contactor cover.
7. Remove the drive motor cover panel from inside the operator compartment. Set the panel and mounting
hardware aside.
8. Label or note how all propel motor wires are routed and tied before disconnecting.
NOTE: Once the new hardware and cables are installed, all motor wires must be routed and tied as shown in
Fig. 3.
8. Disconnect and remove both 2 gauge and both 4
gauge wires from the propel motor. Leave the terminal
nuts on the posts close to the motor. Disconnect the
other ends of the 4 gauge wires from the contactor.
Disconnect the other ends of the 2 gauge wires from
the motor controller. Remove and discard the propel
motor wires.

IB 340485 (03--2010)4
9. Connect each new 4 gauge wire (5), to each of the
lower posts (S1 and S2) on the propel motor, with new
nuts (6), flat washers (7), and lock washers (8) as
shown in Fig. 2. Hand tighten the mounting hardware.
1. Carefully route the 4 gauge wire from post S1 to the
inside contactor. Route the 4 gauge wire from post S2
to the outside contactor. Connect the wires to the
contactors with new lock washers (11), flat washers
(10), and nuts (9) as shown in Fig. 2. Hand tighten the
mounting hardware.
2. Connect each new 2 gauge wire (4), to each of the top
posts (A1 and A2) on the propel motor, with new nuts
(6), flat washers (7), and lock washers (8) as shown in
Fig. 2. Hand tighten the mounting hardware.
3. Carefully route the 2 gauge wire from post A1 to the
inside post on the motor controller. Route the 2 gauge
wire from post A2 to the outside post on the motor
controller. Connect the wires to the posts on the motor
controller with set aside hardware as shown in Fig. 2.
Hand tighten the mounting hardware.
A1 A2
S2
S1
5
From S1
From S2
A1 A2
44
From A2
From A1

IB 340485 (03--2010) 5
5
4
6
7
8
67
8
6
7
8
76
9
9
10
10
11
11
FIG. 2 -- New Cable And Hardware Installation, Propel Motor
(Refer to FIG. 3 for cable routing)

IB 340485 (03--2010)6
FIG. 3 -- New Cable Routing, Propel Motor
9. Be sure all new motor wires are routed the same way as shown in Fig. 3.
NOTE: All motor wires must be routed and tied as shown in Fig. 3.
10. Tighten all mounting hardware to 125 in. lbs.
11. Slide any excess length of the 4 gauge wires into the panel box. Secure the new motor wires with wire ties.
Refer to Fig. 3.
12. Open the circuit board panel next to the motor and set the cover mounting hardware aside. Refer to Fig. 4.
13. Carefully label or note all ribbon cable mounting locations on both circuit boards.
14. Disconnect all ribbon cables from both circuit boards. Remove both circuit boards from the machine, and
place them on a clean work surface.
15. Replace the three 10A fuses in the two circuit boards with three new slo--blo 20A fuses. Refer to Fig. 4.

IB 340485 (03--2010) 7
Replace three 10A fuses with
three new 20A fuses
FIG. 4 -- Circuit Board Assembly
16. Install the circuit boards in the machine and reconnect all ribbon cables to the boards.
17. Close and secure the circuit board cover.
18. Reinstall the motor panel cover inside the operator compartment.
19. Reinstall the detergent tank (option) if removed.
20. Reinstall the contactor cover.
21. Close the side door and cover on the left side of the machine.
22. Reconnect the battery cables to the machine. Close the rear machine cover.
23. Turn the machine power on. Check the machine for proper operation.

IB 340485 (03--2010)8
SECTION 3:
MAXPRO 1000 VACUUMIZED SIDE SQUEEGEE INSTALLATION:
(Refer to IB 340474 for removal and installation of new vacuumized side squeegee)
1. Install the new vacuumized side squeegee. (Refer to INSTRUCTION BULLETIN 340474)
SECTION 4:
MAXPRO 1000 REAR SQUEEGEE INSTALLATION:
(Refer to IB 340398 for removal and installation of new MaxPro 1000 rear squeegee)
1. Install the new MaxPro 1000 rear squeegee. (Refer to INSTRUCTION BULLETIN 340398)
SECTION 5:
FRONT SIDE BRUSH ADJUSTMENT:
(Refer to Fig. 4 and Fig. 5)
1. Drive the machine to a clean, level surface.
2. Check that the front side brush is raised. Turn the machine power off.
FOR SAFETY: Before leaving or servicing machine, stop on level surface and set parking
brake. Then turn off machine and remove key.
3. Observe the side brush from the side of the machine. The side brush should be pointing down at a 5°angle,
towards the front of the machine. Refer to Fig. 5 and Fig. 6.
4. If brush adjustment is needed, turn the machine power on. Raise the hopper and secure with the hopper
support arm. Lower the side brush.
5. Loosen side brush adjustment screw (A) if the side brush needs front/back adjustment. Tighten side brush
adjustment screw (A) after readjusting the front/back brush angle. Refer to Fig. 5 and Fig. 6.
6. Raise the side brush.
7. Observe the side brush from the front of the machine. The side brush should be pointing down at a 5°angle,
towards the outside of the machine. Refer to Fig. 5 and Fig. 6.
8. If brush adjustment is needed, lower the side brush.
9. Loosen side brush adjustment screw (B) if the side brush needs left/right adjustment. Tighten the side brush
adjustment screw (B) after readjusting the left/right brush angle. Refer to Fig. 5 and Fig. 6.
10. Raise the hopper and disengage the hopper support arm. Lower the hopper, and the side brush. Check the
side brush for proper operation.

IB 340485 (03--2010) 9
5°5°
SIDE VIEW FRONT VIEW
Front of machine
FIG. 5 -- Recommended Side Brush Angle Settings
A
B
A
FIG. 6 -- Side Brush Adjustment Screws
SECTION 6:
8300 ADDITIONAL DOCUMENTATION:
1. Mount the 8300 Quick Reference Guide to the machine key chain for future reference.
2. View the 8300 video (2) for recommended operating and maintenance procedures.

IB 340485 (03--2010)10
Bill Of Materials For 8300 Retrofit Kit 387548
TENNANT
Ref. Part No. Description Qty.
1 387505 Kit, conv, scrub head, disk, [MP1200] 1
2 387547 Kit, video, [8300] 1
3 86385 Sealant, silicone, [type Z5], 01.00Z 1
4 386804 Wire, 2 gauge, 32.0L BLK, 0.31 ring/0.31 ring 2
5 71529 Wire, 4 gauge, 32.0L BLK, 0.31 ring/0.31 ring 2
6 39311 Nut, hex, std, M08 X 1.25 4
7 32490 Washer, flt, 0.250 std 4
8 32988 Washer, lock, int, 0.38 4
9 41359 Nut, hex, std, M06 X 1.0 2
10 32483 Washer, flt 0.25 SAE 2
11 32982 Washer, lock, int 0.25 2
12 603103000 Fuse, 20A, 3AG, SLO--BLO 3
Bill Of Materials For Retrofit Kit, Iron Gray, CI [8300] -- 9006965
TENNANT
Ref. Part No. Description Qty.
1 9006962 Kit, conv, scrub head, disk, gray [MP1200] 1
2 387547 Kit, video, [8300] 1
3 86385 Sealant, silicone, [type Z5], 01.00Z 1
4 386804 Wire, 2 gauge, 32.0L BLK, 0.31 ring/0.31 ring 2
5 71529 Wire, 4 gauge, 32.0L BLK, 0.31 ring/0.31 ring 2
6 39311 Nut, hex, std, M08 X 1.25 4
7 32490 Washer, flt, 0.250 std 4
8 32988 Washer, lock, int, 0.38 4
9 41359 Nut, hex, std, M06 X 1.0 2
10 32483 Washer, flt 0.25 SAE 2
11 32982 Washer, lock, int 0.25 2
12 603103000 Fuse, 20A, 3AG, SLO--BLO 3
TENNANT COMPANY
P. O. Box 1452
Minneapolis, MN 55440-1452