Advance acoustic Terra 3700B User manual

TerraTM 3700B
SERVICE MANUAL
Advance model: 908 4203 010
146 1965 000(2)2007-02

ENGLISH SERVICE MANUAL
2146 1965 000(2)2007-02 TerraTM 3700B

SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 1
TABLE OF CONTENTS
GENERAL INFORMATION ........................................................................................................................................ 3
MACHINE LIFTING ............................................................................................................................................... 3
MACHINE TRANSPORT ....................................................................................................................................... 3
PUSHING OR TOWING THE MACHINE .............................................................................................................. 3
OTHER AVAILABLE MANUALS ............................................................................................................................ 3
SAFETY ................................................................................................................................................................ 3
GENERAL SAFETY PRECAUTIONS ................................................................................................................... 4
TECHNICAL DATA ................................................................................................................................................ 5
MAINTENANCE .................................................................................................................................................... 6
SCHEDULED MAINTENANCE TABLE ................................................................................................................. 6
MACHINE NOMENCLATURE ............................................................................................................................... 7
MACHINE NOMENCLATURE [for machines up to serial number 062211246] ..................................................... 8
MACHINE NOMENCLATURE [for machines from serial number 062211247] .................................................... 10
SWEEPING SYSTEM .............................................................................................................................................. 12
MOTOR-TO-MAIN BROOM BELT CHECK ......................................................................................................... 12
MOTOR-TO-MAIN BROOM BELT REPLACEMENT ........................................................................................... 12
MAIN BROOM HEIGHT CHECK AND ADJUSTMENT ....................................................................................... 13
MAIN BROOM REPLACEMENT ......................................................................................................................... 14
SIDE BROOM HEIGHT CHECK AND ADJUSTMENT ........................................................................................ 15
SIDE BROOM REPLACEMENT .......................................................................................................................... 17
MAIN MOTOR ELECTRICAL INPUT CHECK ..................................................................................................... 18
STARTER/DYNAMO OR MAIN MOTOR CARBON BRUSH CHECK AND REPLACEMENT ............................. 19
MAIN MOTOR AND REDUCTION UNIT REMOVAL/INSTALLATION ................................................................. 20
STARTER/DYNAMO AND REDUCTION UNIT REMOVAL/INSTALLATION ....................................................... 22
SIDE BROOM MOTOR ELECTRICAL INPUT CHECK ....................................................................................... 24
SIDE BROOM MOTOR REMOVAL/INSTALLATION ........................................................................................... 25
SIDE BROOM LIFTING CABLE REPLACEMENT
[for machines from serial number 062211247] .................................................................................................... 26
SIDE BROOM MICROSWITCH ADJUSTMENT/REPLACEMENT
[for machines from serial number 062211247] .................................................................................................... 27
TROUBLESHOOTING ........................................................................................................................................ 28
SKIRT ....................................................................................................................................................................... 29
SKIRT HEIGHT AND OPERATION CHECK ........................................................................................................ 29
SIDE SKIRT REPLACEMENT ............................................................................................................................. 31
FRONT AND REAR SKIRT REPLACEMENT ..................................................................................................... 32
FRONT SKIRT LIFTING CABLE ADJUSTMENT ................................................................................................ 33
FRONT SKIRT LIFTING CABLE REPLACEMENT ............................................................................................. 34
DUST AND DEBRIS COLLECTION SYSTEM ........................................................................................................ 35
DUST FILTER CLEANING AND INTEGRITY CHECK ........................................................................................ 35
FILTER SHAKER OPERATION CHECK ............................................................................................................. 36
FILTER SHAKER MOTOR ELECTRICAL INPUT CHECK .................................................................................. 36
TROUBLESHOOTING ........................................................................................................................................ 36
MANUAL VACUUM SYSTEM .................................................................................................................................. 37
MANUAL VACUUM SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT ............................... 37
MANUAL VACUUM SYSTEM MOTOR REMOVAL/INSTALLATION ................................................................... 38
TROUBLESHOOTING ........................................................................................................................................ 38

ENGLISH SERVICE MANUAL
2146 1965 000(2)2007-02 TerraTM 3700B
BRAKE SYSTEM ..................................................................................................................................................... 39
BRAKE ADJUSTMENT [for machines up to serial number 062211246] ............................................................. 39
BRAKE ADJUSTMENT [for machines from serial number 062211247] .............................................................. 41
BRAKE REPLACEMENT [for machines up to serial number 062211246] .......................................................... 42
BRAKE REPLACEMENT [for machines from serial number 062211247] ........................................................... 43
DRIVE SYSTEM ....................................................................................................................................................... 44
DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK ................................................................................... 44
DRIVE SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT ................................................... 45
DRIVE SYSTEM MOTOR REMOVAL/INSTALLATION ....................................................................................... 46
DRIVE PEDAL CHECK AND ADJUSTMENT ...................................................................................................... 47
TROUBLESHOOTING ........................................................................................................................................ 48
OTHER SYSTEMS ................................................................................................................................................... 49
SCREW AND NUT TIGHTENING CHECK .......................................................................................................... 49
FRONT COVER DISASSEMBLY/ASSEMBLY[for machines from serial number 062211247] ............................ 50
STEERING COLUMN TILTING ADJUSTING LEVER REPLACEMENT
[for machines from serial number 062211247] .................................................................................................... 52
ELECTRICAL SYSTEM ........................................................................................................................................... 53
BATTERY CHARGE AND MAINTENANCE ........................................................................................................ 53
BATTERY INSTALLATION AND BATTERY TYPE SETTING (WET OR GEL) ................................................... 53
DRIVE SYSTEM ELECTRONIC BOARD REPLACEMENT ................................................................................ 54
HOUR COUNTER AND BATTERY VOLTAGE DISPLAY ELECTRONIC BOARD REPLACEMENT .................. 55
NON-START FUNCTION CHECK (WITHOUT OPERATOR ON THE DRIVER’S SEAT) ................................... 55
HOOD SAFETY SWITCH OPERATION CHECK ................................................................................................ 55
NON-START FUNCTION CHECK (WITH BATTERY CHARGER CONNECTED
TO THE ELECTRICAL MAINS) .......................................................................................................................... 55
COMPONENT LAYOUT ...................................................................................................................................... 56
WIRING DIAGRAM ............................................................................................................................................. 59

GENERAL INFORMATION
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 3
MACHINE LIFTING
WARNING!
Do not work under the lifted machine without supporting it with safety stands.
MACHINE TRANSPORTATION
WARNING!
Before transporting the machine, make sure that:
All lids and cases are closed.
The ignition key is removed.
The machine is securely fastened to the means of transport.
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PUSHING OR TOWING THE MACHINE
WARNING!
When pushing or towing the machine, carefully follow the instructions in the User Manual. Failure to follow
these instructions may cause damage to the machine.
OTHER REFERENCE MANUALS AVAILABLE FOR TERRATM 4300B
The following manuals are available at Nilsk Literature Service Department:
TerraTM 3700B - User Manual – Nilsk Form Number 146 1963 000
TerraTM 3700B - Spare Parts List – Nilsk Form Number 146 1964 000
TerraTM 3700B - Battery Charger Kit – Nilsk Form Number 146 2055 000
TerraTM 3700B - Manual Vacuum System Kit – Nilsk Form Number 146 2049 000
TerraTM 3700B - Working light Kit – Nilsk Form Number 146 2053 000
TerraTM 3700B - Pivoting Light Kit – Nilsk Form Number 146 2054 000
TerraTM 3700B - Buzzer Kit – Nilsk Form Number 146 2128 000
SAFETY
The following symbols indicate potentially dangerous situations.
Always read this information carefully and take all necessary precautions to safeguard people and property.
DANGER!
It indicates a dangerous situation with risk of death for the operator.
WARNING!
It indicates a potential risk of injury for people or damage to objects.
CAUTION!
It indicates a remark related to important or useful functions.
Pay careful attention to the paragraphs marked by this symbol.
NOTE
It indicates a caution or a remark related to important or useful functions.
CONSULTATION
It indicates the necessity to refer to the User Manual before performing any procedure.
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GENERAL INFORMATION
ENGLISH SERVICE MANUAL
4146 1965 000(2)2007-02 TerraTM 3700B
GENERAL SAFETY PRECAUTIONS
Specic warnings and cautions to inform about potential damages to people and machine are shown below.
DANGER!
Remove the ignition key and disconnect the batteries before performing any maintenance/repair procedure.
This machine must be used by properly trained and authorised personnel only. Children or disabled people
cannot use this machine.
Keep the battery away from sparks, ames and incandescent material. During the normal operation explosive
gases are released.
Do not wear jewels when working near electrical components.
Do not work under the lifted machine without supporting it with safety stands.
Do not operate the machine near toxic, dangerous, ammable and/or explosive powders, liquids or vapours.
Battery charging produces highly explosive hydrogen gas. Keep the hood open during battery charging and
perform this procedure in well-ventilated areas and away from naked ames.
WARNING!
Carefully read all the instructions before carrying out any maintenance/repair procedure.
Take all necessary precautions to prevent hair, jewels and loose clothes from being caught by the machine
moving parts.
Do not smoke while charging the batteries.
Do not leave the machine unattended while the ignition key is inserted without being sure that the machine cannot
move independently.
Do not use the machine on slopes with a gradient exceeding the specications.
Do not wash the machine with direct or pressurised water jets, or with corrosive substances. Do not use
compressed air to clean this type of machine.
Do not use the machine in particularly dusty areas.
While using this machine, take care not to cause damage to people and property.
The machine storage temperature must be between +32°F and +104°F (0°C and +40°C).
The machine working temperature must be between +32°F and +104°F (0°C and +40°C).
The humidity must be between 30% and 95%.
Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition.
Do not use the machine as a means of transport.
Do not allow the brooms to operate while the machine is stationary to avoid damaging the oor.
In case of re, possibly use a powder re extinguisher, not a water one.
Do not remove or modify the plates afxed to the machine.
If parts must be replaced, require ORIGINAL spare parts from a Dealer or Authorised Retailer.
The machine must be disposed of properly, because of the presence of toxic-harmful materials (batteries, oils,
etc.), which are subject to standards that require disposal in special centres (see Scrapping chapter in the User
Manual).
Be very careful when operating the machine at high speed: sudden steering could cause this three-wheel machine
to become unstable due to weight distribution.
Always reduce the speed before steering.
If the machine is used according to the instructions, the vibrations are not dangerous. The machine vibration level
is less than 2.5 m/s2 (98/37/EEC-EN-1033/1995-EN 1032).
When lead (WET) batteries are installed, do not tilt the machine for more than 30° from the horizontal plane to
prevent the highly corrosive acid from leaking out of the batteries. When the machine is to be tilted to perform
maintenance procedures, remove the batteries.
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GENERAL INFORMATION
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 5
TECHNICAL DATA
Dimensions Values
Minimum machine length 49.4 in (1,255 mm)
Machine width (without side brooms) 31.3 in (795 mm)
Maximum machine height (steering wheel with knob) 45.47 in (1,155 mm)
Working width (with/without side brooms) 39.4/23.6 in (1,000/600 mm)
Minimum distance from the ground (skirts not included) 1.6 in (40 mm)
Main broom size 10.43 x 23.62 in (265 mm x 600 mm)
Side broom size 16.53 in (420 mm)
Front driving and steering wheel size 7.87 x 1.97 in (200 x 50 mm)
Rear wheels 9.84 x 1.97 in (250 x 50 mm)
Machine total weight 317.5 lb (144 kg) (without batteries)
Forward speed 5.5 km/h
Reverse speed 4.4 km/h
Gradeability 16%
Hopper capacity 9.5 gal (36 litres)
Main broom and vacuum fan motor 600 W
Side broom motors 60 W
Drive system motor 400 W
Filter shaker motor 12 W
Sound pressure level at workstation (LpA) 71.6 dB(A)
Batteries Values
Battery voltage 24 V
Standard batteries Lead (WET), with acid electrolyte
Optional battery Gel (GEL), hermetic
Battery capacity 100 – 240 Ah C5
Battery compartment maximum size 14.1x14.8x15.2 in (357x375x385 mm)
Dust vacuuming and ltering Values
Paper dust lter 5-10 µm 32.3 ft2(3 m2)
Main broom compartment vacuum 0.75 inH2O (18 mmH2O)

GENERAL INFORMATION
ENGLISH SERVICE MANUAL
6146 1965 000(2)2007-02 TerraTM 3700B
MAINTENANCE
The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.
WARNING!
See GENERAL INFORMATION and SAFETY - ACCIDENT PREVENTION
The following table provides the scheduled maintenance. The intervals shown may vary according to particular working
conditions, which are to be dened by the person in charge of the maintenance.
For maintenance procedures, see the following paragraphs.
SCHEDULED MAINTENANCE TABLE
Maintenance operation Upon
delivery
Every 10
hours
Every 50
hours
Every 100
hours
Every 200
hours
Every 400
hours
Battery uid level check
Side and main broom height check and adjustment
Dust lter cleaning and integrity check
Skirt height and operation check
Filter shaker operation check
Hood safety switch operation check
Main broom driving belt check
Nut and screw tightening check (1)
Service and parking brake check and adjustment
Main broom driving belt replacement
Main motor and drive system motor carbon brush
check and replacement
(1): And after the rst 8 running-in hours.

GENERAL INFORMATION
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 7
MACHINE NOMENCLATURE
Throughout this Manual you will nd numbers in brackets – for example: (2). These numbers refer to the components shown in
these two nomenclature pages. Refer to these pages whenever it is necessary to identify a component mentioned in the text..
Left control panel
Ignition key
Discharged battery warning light
Semi-discharged battery warning light
Charged battery warning light
Display
Display selection button: hour counter/hour and minute
counter/battery voltage (V)
Horn switch
Switch having the following functions:
in the central position: off
pushed forward (xed): it turns on the main broom
and the vacuum fan
pushed backward (not xed): it turns on the lter
shaker
Manual vacuum system switch (optional)
Working light switch (optional)
Emergency push-button
Control panel mounting screws
Right control panel
Steering wheel
Steering column tilting adjusting lever
Vacuum activation/deactivation lever
Side broom lifting/lowering lever
Forward/reverse gear pedal
Service brake pedal
Parking brake lever (it acts on the front wheel)
23a. Brake engaged
23b. Brake disengaged
Front skirt lifting pedal
Can holder
Hood
Rear wheels on xed axle
Front driving and steering wheel
Right side broom
Left side broom
Main broom
Left side skirt
Right side skirt
Front skirt
Rear skirt
Hopper
Hopper hook
Hopper handle
Main broom left lid
Main broom height left adjuster
Main broom height right adjuster
Main broom right lid
Main broom right lid mounting screws
Pivoting light (always on when the ignition switch is
turned to “I” position) (optional)
Driver’s seat with safety microswitch
Additional hole for manual vacuum system kit (optional)
Adjustable steering column
Working light (optional)
Side broom height adjusting knob
Seat longitudinal position adjusting lever
Manual vacuum system (optional)
Serial number plate/technical data/EC certication
Hood (open)
Hood support rod
1.
2.
3.
4.
5.
6.
7.
9.
10.
•
•
•
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
56.
59.
60.
Batteries
Battery caps (for WET batteries)
Battery connector
Electronic battery charger (optional)
Battery charger cable
Lamellar fuse box (accessories)
Drive system circuit breaker
Main broom/vacuum fan motor circuit breaker
Lead (WET) or gel (GEL) battery selector on the optional
electronic battery charger
Charged battery warning light
Main broom belt
Main broom drive pulley
Vacuum fan
Main motor
Manual vacuum system (optional)
Switch for machine pushing
Battery installation diagrams
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
76.
77.
78.

GENERAL INFORMATION
ENGLISH SERVICE MANUAL
8146 1965 000(2)2007-02 TerraTM 3700B
MACHINE NOMENCLATURE (for machines up to serial number 062211246)
14 116 345
2
9
6
7
15
13
12
10
22 23b
23a
44
46
18
20
49
19
17
47
25
21
43
41
33
42
35
27
36
37
38
45
51
26
31
27
39
32
40
34
30
28
48
29
50
24
22 23
S300797

GENERAL INFORMATION
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 9
MACHINE NOMENCLATURE (for machines up to serial number 062211246)
6V 6V
6V 6V
12V
12V
64
64
63
78 63
61
59
93
56
63
61
62
68 67 66
77
76
73
74
72
92 69
65
70
64
71
60
S300798

GENERAL INFORMATION
ENGLISH SERVICE MANUAL
10 146 1965 000(2)2007-02 TerraTM 3700B
MACHINE NOMENCLATURE (for machines from serial number 062211247)
14 116 345
2
9
6
7
15
13
12
10
18
23b
23a
44
46 20
49
19
17
47
25
21
43
41
33
42
35
27
36
37
38
45
51
26
31
27
39
32
40
34
30
28
48
29
50
24
22
96
23
S301625

GENERAL INFORMATION
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 11
MACHINE NOMENCLATURE (for machines from serial number 062211247)
6V 6V
6V 6V
12V
12V
64
64
63
78 63
61
59
60
56
63
61
62
68 67 66
77
76
73
74
72
71
69
65
70
64
92
93
S301626

SWEEPING SYSTEM
ENGLISH SERVICE MANUAL
12 146 1965 000(2)2007-02 TerraTM 3700B
MOTOR-TO-MAIN BROOM BELT CHECK
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0” and remove it.
Open the hood (26) and engage the hood support rod (60).
Check the condition of the belt (71) between the motor and the main broom. To check the belt, turn it by manually operating
on the fan (73).
If the belt is worn, replace it.
Check that the belt tensioner (92) is in good condition.
Disengage the support rod (60) and close the hood (26).
MOTOR-TO-MAIN BROOM BELT REPLACEMENT
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0”.
Remove the main broom.
Remove the belt (71) from the pulley (72); for an easier removal, turn the pulley (72) by manually operating on the fan (73).
Remove the screws (43) and the right lid (42) together with the belt (71).
Install the components in the reverse order of removal.
Install the tensioner (92) of the belt (71) as shown in the gure.
1.
2.
3.
4.
5.
6.
7.
1.
2.
3.
4.
5.
6.
S300801

SWEEPING SYSTEM
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 13
MAIN BROOM HEIGHT CHECK AND ADJUSTMENT
NOTE
Brooms with harder or softer bristles are available. This procedure is applicable to all types of brooms.
Check
Check that the main broom is at the correct distance from the ground, according to the following procedure:
Drive the machine on a level ground.
Keep the machine stationary and turn on the main broom for a few seconds.
Stop the main broom, then move the machine and turn it off.
Check that the main broom print (A), along its length, is 0.8-1.2 in (2-4 cm) wide.
If the print (A) is not within specications, adjust the broom height according to the following procedure.
CAUTION!
If the main broom print is excessive (larger than 1.57 in (4 cm)), the machine regular operation is affected and
the moving or electrical parts can overheat, thus reducing machine life.
Pay careful attention when performing the above-mentioned checks, and always use the machine according
to the indicated conditions.
Adjustment
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0”.
Loosen the knobs (B) on both sides of the machine.
On both sides of the machine, unscrew the knobs (B) and move the broom height variation indicator (C) as necessary, then
screw down the knobs (B).
The indicator (C) must be in the same position on both sides of the machine; the maximum difference allowed to obtain the
print (A) shown in step 1 (0.78 – 1.57 in (2 - 4 cm) wide) is two notches.
Perform step 1 again to check that the main broom is at the correct distance from the ground.
When the broom is too worn and can no longer be adjusted, replace it according to the procedure shown in the following
paragraph.
1.
•
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•
•
1.
2.
3.
4.
5.
6.
7.
S300802 S300803

SWEEPING SYSTEM
ENGLISH SERVICE MANUAL
14 146 1965 000(2)2007-02 TerraTM 3700B
MAIN BROOM REPLACEMENT
NOTE
Brooms with harder or softer bristles are available. This procedure is applicable to all types of brooms.
CAUTION!
It is advisable to wear protective gloves when replacing the main broom because there can be sharp debris
between the bristles.
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0” and remove it.
Loosen the knobs (A) on both sides of the machine.
Move the height variation indicators (B) until the broom is at the maximum distance from the ground. Screw down the
knobs (A).
On the left side of the machine, loosen the knob (C).
Remove the broom lid (D) by pulling it upwards to disengage the fasteners (E).
Remove the broom (F).
Install the new broom with the bristles rows (G) bent as shown in the gure (top view).
Install the new broom on the machine and ensure that its mesh (H) correctly ts into the relevant drive hub (I).
Check that the drive hub (I) is free from dirt or foreign materials (cords, rags, etc.) accidentally rolled up.
Install the broom lid (D) by engaging the fasteners (E).
Screw down the knob (C).
Adjust the new broom height according to the procedure shown in the previous paragraph.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
G
I
S300804 S300805
S300806 S300807 S300808

SWEEPING SYSTEM
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 15
SIDE BROOM HEIGHT CHECK AND ADJUSTMENT
NOTE
Brooms with harder or softer bristles are available. This procedure is applicable to all types of brooms.
Check
Check the side broom distance from the ground, according to the following procedure:
Drive the machine on a level ground and lower the side brooms.
Keep the machine stationary and turn on the side brooms for a few seconds.
Lift the side brooms, then move the machine.
Check that the size and orientation of the prints left by the side brooms (A) are as follows. If the print is not within
specications, it is necessary to adjust the broom height, according to the procedure shown in step 2.
Height adjustment for both side brooms
Disengage the lever (20) and turn the knob (49) clockwise or counterclockwise to adjust the side broom height.
Perform step 1 again to check the proper adjustment of the side broom height.
When the brooms are too worn and can no longer be adjusted, replace them according to the procedure shown in the
relevant paragraph.
If the brooms have to be adjusted individually, perform the following procedure.
Height adjustment for one side broom
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0” and remove it.
Remove the hopper (36) as shown in the User Manual.
Remove the batteries (61) and the battery container.
WARNING!
Batteries must be removed before tilting the machine, otherwise serious damage to people or machine can
occur.
Paying careful attention and with the help of an assistant, lift the machine front side (C), then lean its rear side on the
ground (as shown in the gure), by setting it down carefully on a proper guard (D).
Operating on the control cable (E) of the broom which needs to be adjusted, loosen the locknut (F) and tighten/loosen the
screw (G) as necessary; then tighten the locknut (F).
When the brooms are too worn and can no longer be adjusted, replace them according to the procedure shown in the
relevant paragraph.
Perform steps 3 to 8 in the reverse order.
1.
•
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•
•
2.
3.
4.
5.
6.
7.
8.
9.

SWEEPING SYSTEM
ENGLISH SERVICE MANUAL
16 146 1965 000(2)2007-02 TerraTM 3700B
SIDE BROOM HEIGHT CHECK AND ADJUSTMENT (continues)
A
B
D
C
S300809

SWEEPING SYSTEM
SERVICE MANUAL ENGLISH
TerraTM 3700B 146 1965 000(2)2007-02 17
SIDE BROOM REPLACEMENT
NOTE
Brooms with harder or softer bristles are available. This procedure is applicable to all types of brooms.
CAUTION!
It is advisable to wear protective gloves when replacing the side brooms because there can be sharp debris
between the bristles.
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0” and remove it.
Operating inside the side broom, loosen the screw (A) and then remove the broom with the hub (B) by disengaging it from
the shaft (C). Recover the key (D) and the washer (E).
At the workbench, remove the two screws (F) and separate the broom (H) from the hub (G).
Install the new broom (H) onto the hub (G), and tighten the screws (F).
Fit the key (D) and install the broom with the hub (B). Install the washer (E) and tighten the screw (A).
Adjust the side broom height, as described in the previous paragraph.
1.
2.
3.
4.
5.
6.
7.
S300529A

SWEEPING SYSTEM
ENGLISH SERVICE MANUAL
18 146 1965 000(2)2007-02 TerraTM 3700B
MAIN MOTOR ELECTRICAL INPUT CHECK
WARNING!
This procedure must be performed by qualied personnel only.
Preliminary operations
Check and adjust the main broom.
Drive the machine on a solid and level ground and engage the parking brake with the lever (23).
Turn the ignition key (2) to “0” and remove it.
Open the hood (26) and engage the hood support rod (60).
Connect the main motor (74) to the battery (61) as shown in the diagram (A), by inserting the 30 A fuse (B) to protect the
system.
Apply an ammeter (C) to the connection (A) and route the connection so that the hood (26) can be closed; then perform the
test shown in the next step. In this way, the ammeter (C) can be seen by the operator seated on the machine.
Check the main motor electrical input
Start the machine and perform a sweeping simulation, according to the procedures shown in the User Manual. The
following conditions are required:
Lower the main broom.
Lift the side brooms.
Drive the machine at the maximum speed.
Clean the vacuum lter by using the lter shaker.
Drive the machine on a stretch of level ground, in both directions, while recording both values.
Do not let the engine overheat.
In these conditions, record the main motor electrical input by using the ammeter (C).
Stop the machine and compare the readings with the values listed in the table below, according to the kind of ground the
test has been performed on.
Kind of ground A
Smooth concrete base 20 - 22
Light carpet 20 - 22
Heavy carpet 26
If the electrical input is higher, perform the following procedures to detect the cause and correct the abnormal input:
Remove dirt or foreign materials from the main broom drive system, which can clog or slow down its normal movement.
If necessary, check the motor carbon brushes.
If necessary, remove, clean and check the main motor.
If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced.
Reset
Perform steps 4 and 5 in the reverse order.
1.
2.
3.
4.
5.
6.
•
•
•
•
•
•
•
•
•
7.
C
B
30A
A
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