Tennant 8300 User manual

330635
Rev. 02 (5--02)
Service Manual
8300
*330635*

This service manual is intended to be used as an aid in the detailed service, repair, and troubleshooting of
your TENNANT Model 8300.
The set is organized into six major groups: General Information, Chassis, Sweeping, Scrubbing,
Electrical, and Hydraulics.
General Information: Safety precautions, machine specifications, machine maintenance chart, machine
tieing, machine jacking, machine storing, machine pushing or towing, and hardware information.
Chassis: Tire/wheel replacement, brake adjustment and replacement, steering adjustment and
replacement.
Sweeping: Hopper adjustments, brush repair/replacement, skirt/seal repair/replacement, and sweeping
troubleshooting.
Scrubbing: Scrub head repair/replacement, brush repair/replacement, skirt/seal repair/replacement,
squeegee repair/replacement, solution and recovery tank repair/replacement, and scrubbing
troubleshooting.
Electrical: Battery maintenance and replacement, electrical schematics, and electrical troubleshooting.
Hydraulics: Valve replacement, motor replacement, cylinder replacement, pump replacement, filter
replacement, hydraulic schematic, and hydraulic troubleshooting.
Manual Number -- 330635
Revision: 02
Published: 5--02
Copyright E2000, 2001, 2002 TENNANT, Printed in U.S.A.

GENERAL INFORMATION
1-1
8300 330635 (5--02)
CONTENTS
Page
SAFETY PRECAUTIONS 1-3..............
SPECIFICATIONS 1-7....................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1-7...
GENERAL MACHINE
PERFORMANCE 1-7.............
POWER TYPE 1-8..................
STEERING 1-9.....................
HYDRAULIC SYSTEMS 1-9..........
BRAKING SYSTEM 1-9.............
TIRES 1-9.........................
MACHINE DIMENSIONS 1-10........
PUSHING, TOWING, AND
TRANSPORTING THE MACHINE 1-11
PUSHING OR TOWING THE
MACHINE 1-11..................
TRANSPORTING THE MACHINE 1-11
MACHINE JACKING 1-13...............
STORAGE INFORMATION 1-14.........
MACHINE TROUBLESHOOTING 1-15...
MAINTENANCE 1-17.....................
MAINTENANCE CHART 1-17...........
HARDWARE INFORMATION 1-19..........
STANDARD BOLT TORQUE
CHART 1-19.....................
METRIC BOLT TORQUE CHART 1-19
BOLT IDENTIFICATION 1-19.........
THREAD SEALANT AND LOCKING
COMPOUNDS 1-19..............
HYDRAULIC FITTING INFORMATION 1-20..
HYDRAULIC TAPERED PIPE FITTING
(NPT) TORQUE CHART 1-20........
HYDRAULIC TAPERED SEAT FITTING
(JIC) TORQUE CHART 1-20.........
HYDRAULIC O--RING FITTING
TORQUE CHART 1-20..............

GENERAL INFORMATION
1-2 8300 330635 (8--00)

GENERAL INFORMATION
1-3
8300 330635 (5--02)
SAFETY PRECAUTIONS
The following symbols are used throughout this
manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
FOR SAFETY: To identify actions that
must be followed for safe operation of
equipment.
The following information signals potentially
dangerous conditions to the operator or
equipment. Read this manual carefully. Know
when these conditions can exist. Locate all safety
devices on the machine. Then, take necessary
steps to train machine operating personnel.
Report machine damage or faulty operation
immediately. Do not use the machine if it is not in
proper operating condition.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
WARNING: Flammable materials or
reactive metals can cause explosion or
fire. Do not pick up.
WARNING: Moving belt and fan. Keep
away.
WARNING: Lift arm pinch point. Stay
clear of hopper lift arms.
WARNING: Raised hopper may fall.
Engage hopper support bar.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operation manual is read and
understood.
-- In flammable or explosive areas unless
designed for use in those areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation.
3. When starting machine:
-- Keep foot on brake and directional
pedal in neutral.
4. When using machine:
-- Use brakes to stop machine.
-- Go slow on inclines and slippery
surfaces.
-- Use care when backing machine.
-- Do not carry riders on machine.
-- Follow mixing and handling
instructions on chemical containers.
-- Always follow safety and traffic rules.
-- Report machine damage or faulty
operation immediately.
5. Before leaving or servicing machine:
-- Stop on level surface.
-- Set parking brake.
-- Turn off machine and remove key.
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves when
working on machine.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated
locations only. Block machine up with
jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Use Tennant supplied or equivalent
replacement parts.

GENERAL INFORMATION
1-4 8300 330635 (5--02)
7. When loading/unloading machine
onto/off truck or trailer:
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Use winch. Do not drive the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Set parking brake after machine is
loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

GENERAL INFORMATION
1-5
8300 330635 (5--02)
The safety labels appear on the machine in the
locations indicated. If these or any label becomes
damaged or illegible, install a new label in its
place.
BATTERY CHARGING LABEL -- LOCATED ON
THE LINTEL.
FOR SAFETY LABEL -- LOCATED
ON THE INSIDE OF THE OPERATOR
COMPARTMENT.
ENGINE FAN AND BELT LABEL -- LOCATED
ON THE VACUUM FAN SHROUD.

GENERAL INFORMATION
1-6 8300 330635 (5--02)
FLAMMABLE SPILLS LABEL -- LOCATED
ON THE INSIDE OF THE OPERATOR
COMPARTMENT.
FLAMMABLE MATERIALS LABEL -- LOCATED ON
THE INSIDE OF THE SOLUTION TANK COVER.
HOPPER LIFT ARMS LABEL -- LOCATED
ON BOTH HOPPER LIFT ARMS.
HOPPER SUPPORT BAR LABEL -- LOCATED
ON THE HOPPER SUPPORT BAR AND ON
BOTH HOPPER LIFT ARMS. 353391

GENERAL INFORMATION
1-7
8300 330635 (5--02)
SPECIFICATIONS
GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Dimension/capacity
Length 2641 mm (104 in)
Width, frame (with dual side brushes) 1220 mm (48.5 in)
Height, standard 1450 mm (57 in)
Height with overhead guard option 2070 mm (81.5 in)
Cylindrical brush diameter 229 mm (9 in)
Sweeping path width, single side brush (RH) 1270 mm (50 in)
Sweeping path width, dual side brushes 1625 mm (64 in)
Hopper weight capacity 135 kg (300 lbs)
Hopper volume capacity 84.6L(3ft#)
Dust filter area 4.8m@(52.5 ft@)
Solution tank capacity 216 L (57 gal)
Recovery tank capacity 216 L (57 gal)
Tank capacity with EStoption 340 L (90 gal)
Propelling gear box 90 wt. gear lubricant capacity 2.7L(2.7qt)
Ceiling height minimum dumping clearance 1525 mm (60 in)
GVWR 2060 kg (4580 lb)
Item Max Prot1000 Max Prot1200
Disc brush diameter 510 mm (20 in) 406 mm (16 in)
Cylindrical brush length 978 mm (38.5 in) 1180 mm (46.5 in)
Rear Squeegee width 1300 mm (51 in) 1510 mm (59.5 in)
Scrubbing path width 1020 mm (40 in) 1220 mm (48 in)
GENERAL MACHINE PERFORMANCE
Item Measure
Maximum forward speed 8.9 km/h (5.5 mph)
Maximum reverse speed 4.8 km (3mph)
Minimum turning radius, left 4547 mm (179 in)
Minimum turning radius, right 4648 mm (183 in)
Minimum aisle turn 2946 mm (116 in)
Maximum rated climb and descent angle with full tanks 6_
Maximum rated climb and descent angle with empty tanks 8_

GENERAL INFORMATION
1-8 8300 330635 (5--02)
POWER TYPE
Type Quantity Volts Ah Rating Weight
Batteries, Dry 136 500 @ 6 hr rate 617 kg (1370 lb)
136 750 @ 6 hr rate 893 kg (1984 lb)
Batteries, Sealed 136 600 @ 6 hr rate 810 kg (1800 lb)
Batteries, Wet 136 380 @ 6 hr rate 436 kg (960 lb)
136 500 @ 6 hr rate 617 kg (1370 lb)
136 750 @ 6 hr rate 893 kg (1984 lb)
Type Use VDC Kw (hp)
Electric Motors Sweep brush 36 0.60 (.8)
Scrub brush 36 0.75 (1)
Heavy Duty scrub brush 36 1.12 (1.5)
Vacuum fan 36 0.63 (0.85)
Propelling 36 3.4 (4.6)
Type VDC amp Hz Phase VAC
Chargers 36 75 60 1208--240--480
36 75 60 3208--240--480
36 120 60 1208--240--480
36 120 60 3208--240--480
36 150 60 1208--240--480
36 150 60 3208--240--480
36 93 60 1208--240--480
36 93 60 3208--240--480

GENERAL INFORMATION
1-9
8300 330635 (5--02)
STEERING
Type Power source Emergency steering
Front wheel, hydraulic and rotary valve controlled Hydraulic Manual
HYDRAULIC SYSTEMS
System Capacity Fluid Type
Hydraulic reservoir 1.9L (0.5 gal) TENNANT part no. 65869
Hydraulic total 2.6L (0.65 gal) TENNANT part no. 65870
BRAKING SYSTEM
Type Operation
Service brakes Mechanical drum brakes (2), one per rear wheel, cable actuated
Parking brake Utilizes service brakes, cable actuated
TIRES
Location Type Size
Front (1) Solid 413 X 152 mm (16.25 x 6 in)
Rear (2) Solid 406 X 127 mm (16 x 5 in)

GENERAL INFORMATION
1-10 8300 330635 (5--02)
2070 mm
(81.5 in)
2641 mm (104 in)
MaxProt1000
1300 mm
(51 in)
1450 mm
(57 in)
TOP VIEW
SIDE VIEW FRONT VIEW
MaxProt1200
1510 mm
(59.5 in)
1231 mm
(48.5 in)
353382
MACHINE DIMENSIONS

GENERAL INFORMATION
1-11
8300 330635 (5--02)
PUSHING, TOWING, AND TRANSPORTING
THE MACHINE
PUSHING OR TOWING THE MACHINE
If the machine becomes disabled, it can be
pushed from the front or rear, but only tow it from
the front.
Only push or tow the machine for a very short
distance and do not exceed 3.2 kp/h (2 mph). It is
NOT intended to be pushed or towed for a long
distance or at a high speed.
ATTENTION! Do not push or tow
machine for a long distance or damage
may occur to the propelling system.
TRANSPORTING THE MACHINE
1. Position the front of the machine at the
loading edge of the truck or trailer.
FOR SAFETY: Use a truck or trailer that
will support the weight of the machine.
NOTE: Empty the recovery and solution tanks
before transporting the machine.
2. If the loading surface is not horizontal or is
higher than 380 mm (15 in) from the ground,
use a winch to load machine.
If the loading surface is horizontal AND is
380 mm (15 in) or less from the ground, the
machine may be driven onto the truck or
trailer.
3. To winch the machine onto the truck or
trailer, attach the winching chains to the front
tie down locations. The front tie-down
locations are on the front sides of the
machine. Make sure the machine is
centered.
FOR SAFETY: When loading machine
onto truck or trailer, use winch. Do not
drive the machine onto the truck or
trailer unless the loading surface is
horizontal AND is 380 mm (15 in) or less
from the ground.

GENERAL INFORMATION
1-12 8300 330635 (5--02)
4. Position the machine onto the truck or trailer
as far as possible. If the machine starts to
veer off the centerline of the truck or trailer,
stop and turn the steering wheel to center
the machine.
5. Set the parking brake, lower the scrub head
and block the machine tires. Tie down the
machine to the truck or trailer before
transporting.
The front tie-down locations are on the front
sides of the machine.
The rear tie-down locations are on the rear
corners of the machine.
6. If the loading surface is not horizontal or is
higher than 380 mm (15 in) from the ground,
use a winch to unload machine.
If the loading surface is horizontal AND is
380 mm (15 in) or less from the ground, the
machine may be driven off the truck or
trailer.
FOR SAFETY: When unloading machine
off truck or trailer, use winch. Do not
drive the machine off the truck or trailer
unless the loading surface is horizontal
AND 380 mm (15 in) or less from the
ground.

GENERAL INFORMATION
1-13
8300 330635 (5--02)
MACHINE JACKING
You can jack up the machine for service at the
designated locations. Use a jack that will support
the weight of the machine. Always stop the
machine on a flat, level surface and block the tires
before jacking up the machine.
The front jacking locations are located on both
sides of the machine, behind the sweeping
assembly.
FOR SAFETY: Before leaving or
servicing machine, stop on level
surface, set parking brake.
FOR SAFETY: When servicing machine,
use a hoist or jack that will support the
weight of the machine.
The rear jacking locations are located on the rear
bumper, behind the rear tires.
FOR SAFETY: When servicing machine,
block machine tires before jacking
machine up.
FOR SAFETY: When servicing machine,
jack machine up at designated locations
only. Block machine up with jack
stands.

GENERAL INFORMATION
1-14 8300 330635 (5--02)
STORAGE INFORMATION
The following steps should be taken when storing
the machine for extended periods of time.
1. Drain and clean the solution and recovery
tanks.
EStmachines: Run clean water through
the solution system and the EStsolution
pump.
2. Raise the rear squeegee and the scrub
head.
3. Park the machine in a cool, dry area.
4. Remove the batteries, or charge them after
every three months.

GENERAL INFORMATION
1-15
8300 330635 (8--00)
MACHINE TROUBLESHOOTING
Problem Cause Remedy
Trailing water -- poor or no water
i
k
Rear squeegee blades worn Rotate or replace blades
pickup Rear squeegee out of
adjustment
Adjust rear squeegee
Rear squeegee raised Lower rear squeegee
Rear squeegee tube clogged Flush squeegee tube
Side squeegees raised Lower side squeegees
Side squeegee blades worn Replace side squeegee blades
Side squeegees out of
adjustment
Adjust side squeegees
Too much solution flow to floor Reduce solution flow to floor
Vacuum hose clogged Flush vacuum hoses
Recovery tank cover not seated Reseat tank cover
Recovery tank cover seal worn Replace seal
Recovery tank full Drain recovery tank
Float stuck shutting off vacuum Clean float
Debris caught on rear squeegee Remove debris
Foam filling recovery tank Empty recovery tank; use less or
change detergent
Vacuum hose to rear squeegee
disconnected or damaged
Reconnect or replace vacuum
hose
Vacuum fan will not turn on Recovery tank full Drain recovery tank
Vacuum fan circuit breaker
tripped
Reset circuit breaker
Machine in reverse or neutral Propel forward
Vacuum fan failure Contact Tennant service
representative
Littleornosolutionflowtothe
f
l
Solution tank empty Fill solution tank
f
loor Solution flow lever off Open solution flow lever
Solution supply lines plugged Flush solution supply lines
EStswitch off Turn EStswitch on
Manual control valve closed Open valve more

GENERAL INFORMATION
1-16 8300 330635 (8--00)
Problem Cause Remedy
Poor scrubbing performance Debris caught on scrub brushes Remove debris
Improper detergent or brushes
used
Check with TENNANT
representative for advice
Scrub brush pressure not set
properly
Replace scrub brushes
Worn scrub brushes Replace scrub brushes
EStsystem does not fill solution
t
k
Clogged solution pump or lines Flush EStsystem
tank EStfloat switch(es) stuck Clean switch floats of debris
Clogged EStpump filter Clean EStfilter
Water levels too low in tanks Add water to tanks
Excessive dusting Brush skirts and dust seals worn,
damaged, out of adjustment
Replace or adjust brush skirts or
dust seals
Hopper dust filter clogged Shake and/or clean or replace
dust filter
Sweeping vacuum will not
activate
Make sure hopper is in the
lowered position
Reset Thermo Sentryt
Contact Tennant service
representative
Thermo Sentryttripped Reset Thermo Sentryt
Poor sweeping performance Brush bristles worn Replace brushes
Sweeping brushes not properly
adjusted
Adjust brushes
Debris caught in brush drive
mechanism
Remove debris
Brush drive failure Contact Tennant service
representative
Hopper full Empty hopper
Hopper lip skirts worn or
damaged
Replace lip skirts

GENERAL INFORMATION
1-17
8300 330635 (5--02)
MAINTENANCE
2
3
4
5
678
9
10
1
11 12
13
14
15
16
17
1819
2021
22 2324
25
1 2
11
7
21
21
MAINTENANCE CHART
Interval Key Description Procedure
Lubricant/
Fluid
No. of
Service
Points
Daily 1Rear and side squeegees Check for damage, wear -- 3
y
q
g
g
,
and adjustment -- 1
2Brushes Check for damage and wear -- 5, (6)
3Recovery tank Clean -- 1
3Recovery tank, EStmode Clean EStfilter -- 1
4Solution tank, EStmode Clean and flush -- 1
5Vacuum fan filter Clean and flush -- 1
6Debris trough
(Cylindrical brushes only)
Check and clean -- 1
14 Debris hopper Clean -- 1
15 Dust filter Clean -- 1
-- Machine Check for leaks -- 1
50 Hours 7Cylindrical scrub brushes Check Taper -- 2
y
Rotate front to rear -- 2
8Scrub head floor skirts
(Disk brush heads only)
Check for damage and wear -- 1
14 Sweeping assembly side
and recirculation skirts
Check for damage and wear -- 4
9Front flap skirt Check for damage and wear -- 1
9Battery cells Check electrolyte level DW 1

GENERAL INFORMATION
1-18 8300 330635 (5--02)
Interval Key Description Procedure
Lubricant/
Fluid
No. of
Service
Points
100 Hours 16 Cylindrical conveyor Check for damage and wear -- 1
17 Brakes Check adjustment -- 1
18 Sweeping brush drive belts Check for damage, adjustment or
wear
-- 2
19 Sweeping vacuum fan belt Check for damage, adjustment or
wear
-- 1
7Cylindrical scrub
brush drive belts
Check for damage, adjustment or
and wear
-- 1
14 Hopper seals Check for damage and wear -- 5
15 Hopper filter and seals Check for damage, clean or re-
place
-- 2
20 Hopper lift arms Lubricate SPL 4
11 Machine and tank cover
seals
Check for damage and wear -- 5
10 Hydraulic fluid Check fluid level HYDO 1
12 Front wheel support Lubricate SPL 1
p
p
bearing
13 Propelling gearbox Check lubricant level GL 1
22 Scrub head drag link Lubricate SPL 8(4)
g
arm pivot points
(
)
21 Tires Check for damage and wear -- 3
500 Hours 12 Front wheel HTorque wheel nuts -- 1
12 Rear wheel bearings Check, lubricate, and adjust SPL 1
24 Scrub head gas spring Check for wear and operation -- 1
17 Steering gear chain HCheck tension and lubricate GL 1
20 Hopper drive chains HCheck tension and lubricate GL 2
24 Sweeping vacuum fan
motors
Check motor brushes -- 2
23 Scrubbing vacuum fan
motors
Check motor brushes -- 2
10 Hydraulic fluid Drain and replace HYDO 1
10 Hydraulic fluid filter Change filter element -- 1
10 Hydraulic hoses Check for damage and wear -- 1
1000 13 Propelling gearbox HChange fill-level plug seals -- 1
Hours
p
g
g
HChange gear lubricant GL 1
24 Scrubbing brush drive
motors
Check motor brushes -- 2
25 Side brush drive motor(s) Check motor brushes -- 2
24 Sweeping brush drive
motors
Check motor brushes -- 2
13 Propelling motor Check motor brushes -- 1
SPL -- Special lubricant, Lubriplate EMB grease (Tennant part no. 01433--1)
GL -- SAE 90 weight gear lubricant
HYDO -- TENNANT or approved hydraulic fluid
DW -- Distilled water
NOTE: Also check procedures indicated (H) after the first 50-hours of operation.