All rights reserved. No part of this publication may be reproduced.
This publication has been edited by:
After sales - PIAGGIO & C. S.p.A.
V.le Rinaldo Piaggio, 23 - 56025 PONTEDERA (Pi)
ITALY
www.piaggio.com
MANUALE STAZIONE DI
SERVIZIO
APE TM Benzina
WORKSHOP MANUAL
This workshop manual has been drawn up by PIAGGIO & C. Spa to be used by the workshops of Piaggio
dealers. This manual is addressed to Piaggio service mechanics who are supposed to have a basic
knowledge of mechanics principles and of vehicle fixing techniques and procedures. Any important
changes made to the vehicles or to specific fixing operations will be promptly reported by updates to this
manual. Nevertheless, no fixing work can be satisfactory if the necessary equipment and tools are
unavailable. It is therefore advisable to read the sections of this manual relating to specific tools, along
with the specific tool catalogue.
The descriptions and illustrations given in this publication are not binding. While the basic specifications
as described and illustrated in this manual remain unchanged, PIAGGIO reserves the right, at any time
and without being required to update this publication beforehand, to make any changes to components,
parts or accessories, which it considers necessary to improve the product or which are required for
manufacturing or construction reasons.
Not all versions/models shown in this publication are available in all countries. The availability of single
versions should be checked at the official Piaggio sales network.
N.B. Provides key information to make the procedure easier to understand and carry out.
CAUTION Refers to specific procedures to carry out for preventing damages to the vehicle. Refers to
specific procedures to carry out for preventing damages to the vehicle. Refers to specific procedures to
carry out for preventing damages to the vehicle. Refers to specific procedures to carry out for preventing
damages to the vehicle.
WARNING Refers to specific procedures to carry out to prevent injuries to the repairer.
Personal safety Failure to completely observe these instructions will result in serious risk of personal
injury.
Safeguarding the environment Sections marked with this symbol indicate the correct use of the vehicle
to prevent damaging the environment.
Vehicle intactness The incomplete or non-observance of these regulations leads to the risk of serious
damage to the vehicle and sometimes even the invalidity of the guarantee.
INDEX OF TOPICS
GENERALGUIDELINESGEN
CHARACTERISTICSCH
SPECIALTOOLSST
MAINTENANCEMA
EMISSION CONTROLO SYSTEMCO EM
TROUBLESHOOTINGTROUBL
ELECTRICALSYSTEMES
ENGINEFROMVEHICLEEV
ENGINEEN
GEAR-BOXGE
DIFFERENTIALDI
BRAKINGSYSTEMBS
STEERINGCOLUMNSC
SUSPENSIONSSS
TIPPERVERSIONVR
CHASSISCH
PRE-DELIVERYPD
INDEX OF TOPICS
GENERALGUIDELINESGEN
APE TM BenzinaGeneral guidelines
Maintenance guidelines
RULES TO BE FOLLOWED IN THE EVENT OF INTERVENTION ON THE ELECTRIC SYSTEM - APE
TM
A) ESSENTIAL WARNINGS
The check or in any case the intervention on the circuits of the devices for the electronic ignition can
be done with relative ease by the electronic repairers of Service Station Workshops; it is essential,
however, that they take observe the notices below, since, in case of failure to observe, they could
irreparably damage the devices.
All inspection operations of the system involving disconnection of cables (verification of the connections
and devices that are part of the ignition circuit, therefore including the main key switch) must be madewith the engine off: otherwise the control unit could be irreparably damaged.
The ignition circuit works on AC, and obviously,
must be definitely separated from that of DC
In fact the latter, powered by the battery and dynamotor, servesonly for the service user groups
(city lights, stop, horn, lights, headlight, etc.).
KEY:
1 = Red (direct current)
2 = White (direct current)
3 = Grey - Red (direct current)
4 = Purple (alternating current engine stop)
5 = Black (ground)
6 = White - Red (direct current)
* = Connection connected to the red cable of the condenser charging coil.
** = Connections with electronic ignition.
If there is a connection of two circuits, i.e., if the
ignition one was routed by the DC, there would
be instantaneous deterioration of the control
unit. It is therefore necessary and important
that, in case of removal or disconnection of cables,
particularly of those which depend on the main key
switch and the control unit, during reassembly pay
attention to correctly reconnect each cable to the
GEN - 7
General guidelinesAPE TM Benzina
corresponding terminal; for this purpose it is al-
ways advisable to consult the electrical circuit
diagrams.
KEY:
1 = Red (direct current)
2 = White (direct current)
3 = Grey - Red (direct current)
4 = Purple (alternating current engine stop)
5 = Black (ground)
6 = White - Red (direct current)
7 = Grey (direct current)
8 = Black
* = Connection connected to the red cable of the condenser charging coil.
** = Connections with electronic ignition.
For obvious reasons it is essential that, in case of
replacement of one or more devices in the system
(main switch, stator unit of the flywheel, control
unit) during reassembly, a device is used that is
similar to the existing one: if in fact similar devices
were used, but not specific to the same ignition
system, they would not work, risking irreparable
damage to the control unit.
KEY:
1 = White
2 = Red
3 = Green
B) INSPECTIONS TO BE PERFORMED IN THE EVENT OF IGNITION IRREGULARITIES
In the event of failure and abnormal operation of the ignition, whose causes are not detectable by a
visual inspection, it is necessary first to replace the control unit with a corresponding, safely functional
one. Remember that the disconnections and connections to replace the control unit must be performedwhen the engine is off.
GEN - 8
APE TM BenzinaGeneral guidelines
If replacing restores the ignition operation, the fault
lies in the control unit, which obviously needs to be
replaced. In the event that the failure persists, it is
necessary to carry out checks on the alternator
and on the stator components as follows:
After a visual inspection of the connections, stator
and couplings, measurements are carried out on
the charging coil and the ignition coil using an Ohm
meter, capable of detecting resistance from 1 to
1000 ohm, as follows:
- Connect the instrument between the WHITE cable and the RED cable; there must be continuity
and ohmic value (430 to 480 ohm);
KEY:
1) White
2) Red
3) Green
- Connect the + terminal of the instrument with the
WHITE cable and the - terminal of the instrument
with the RED cable there must be continuity and
ohmic value (7 to 9 ohm).
KEY:
1) White
2) Red
3) GreenIf failures are detected in the inspections of the charging coil and ignition coil, proceed to replace the
damaged parts.
If there is no tool available to check the stator, when it is established that the ignition problem is not
related to the power control unit nor to other visible causes (bad connections, damaged cables, damaged spark plug), proceed to replace the complete stator. In relation to what described in the preceding
paragraphs we recommend, therefore, to include in the control tools an Ohm meter with the characteristics outlined above.
C) IGNITION TIMING CHECK
GEN - 9
General guidelinesAPE TM Benzina
The timing check may be useful for example if the motor is not operating properly (start-up difficulties;
decreased performance and power; difficult or irregular recovery speed etc.); if the failure does not
depend on the carburetion, it may be caused by irregularities of the ignition timing.
This possibility is, however, considered quite rare since, due to the characteristics of the ignition system,
the timing adjustment remains unchanged over time; since the problem arises in most cases from irregular operation of the control unit, to be sure please follow the steps outlined on the side for verification
of the aforementioned device.
If however, after checking the carburetion and the
control unit, the desired improvements are not obtained and there is doubt whether the anomalies
are due to the ignition timing, proceed to check the
latter, operating as follows:.
1) Insert, into the hole (1) a rod of Ø 5 mm.; run the
engine manually until when the end of the rod,
coming into correspondence with the other hole on
the rotor, does not fit.
In this condition the engine is in ignition advance position.
2) Make a mark with white paint on the fan cover, in correspondence with the flap of the flywheel bearing
the reference for the timing.
3) Connect a stroboscopic lamp (type TECNOTEST 130/P or other similar) at ignition; the connection
will be made directly on the spark plug or on the H.V. cable, etc. depending on the type of stroboscopic
lamp available and the specific operating instructions. Then start the engine and bring it to about
4000-5000 rpm.
4) The engine will be properly timed to the lamp when the two marks are aligned, or at most, moved to
within a tolerance range of 4° (i.e., within 2° to the right and 2° to the left of alignment position).
5) If the mark of the flywheel rotor is shifted compared to the crankcase more than the allowed tolerance
(or other major irregularities appear during the check), replace the stator or the control unit.
N.B.
FOR VEHICLES OF NEXT PRODUCTION, THE FAN COVER WILL BE FITTED WITH A REFERENCE FOR TIMING, SO THE OPERATIONS DESCRIBED IN POINTS 1 AND 2 WILL NOT BE
NECESSARY.
RULES TO BE FOLLOWED IN THE EVENT OF INTERVENTION ON THE ELECTRIC SYSTEM - APE
TM P703 FL2
A) ESSENTIAL WARNINGS
The check or in any case the intervention on the circuits of the devices for the electronic ignition can
be done with relative ease by the electronic repairers of Service Station Workshops; it is essential,
however, that they take observe the notices below, since, in case of failure to observe, they could
irreparably damage the devices.
GEN - 10
APE TM BenzinaGeneral guidelines
All inspection operations of the system involving disconnection of cables (verification of the connections
and devices that are part of the ignition circuit, therefore including the main key switch) must be madewith the engine off: otherwise the control unit could be irreparably damaged.
The ignition circuit works on AC, and obviously,
must be definitely separated from that of DC
In fact the latter, powered by the battery and dynamotor, servesonly for the service user groups
(city lights, stop, horn, lights, headlight, etc.).
KEY:
1 = Red (direct current)
2 = White (direct current)
3 = Red (direct current)
4 = Purple (alternating current engine stop)
5 = Black (ground)
* = Connection connected to the fuses.
** = Connection connected to the starter relays.
*** = Connection connected to the white-red cable of the light switch.
**** = Connections with electronic ignition.
***** = Connection connected to the voltage regulator.
If there is a connection of two circuits, i.e., if the
ignition one was routed by the DC, there would
be instantaneous deterioration of the control
unit. It is therefore necessary and important
that, in case of removal or disconnection of cables,
particularly of those which depend on the main key
switch and the control unit, during reassembly pay
attention to correctly reconnect each cable to the
corresponding terminal; for this purpose it is al-
ways advisable to consult the electrical circuit
diagrams.
For obvious reasons it is essential that, in case of replacement of one or more devices in the system
(main switch, stator unit of the flywheel, control unit) during reassembly, a device is used that is simi-lar to the existing one: if in fact similar devices were used, but not specific to the same ignition system,
they would not work, risking irreparable damage to the control unit.
B) INSPECTIONS TO BE PERFORMED IN THE EVENT OF IGNITION IRREGULARITIES
GEN - 11
General guidelinesAPE TM Benzina
In the event of failure and abnormal operation of the ignition, whose causes are not detectable by a
visual inspection, it is necessary first to replace the control unit with a corresponding, safely functional
one. Remember that the disconnections and connections to replace the control unit must be performedwhen the engine is off.
If replacing restores the ignition operation, the fault
lies in the control unit, which obviously needs to be
replaced. In the event that the failure persists, it is
necessary to carry out checks on the alternator
and on the stator components as follows:
After a visual inspection of the connections, stator
and couplings, measurements are carried out on
the charging coil and the ignition coil using an Ohm
meter, capable of detecting resistance from 1 to
1000 ohm, as follows:
- Connect the instrument between the WHITE cable and the RED cable, there must be continuity
and ohmic value (430 to 480 ohm);
KEY:
1 = White
2 = Red
3 = Green
- Connect the + terminal of the instrument with the
WHITE cable and the - terminal of the instrument
with the GREEN cable there must be continuity
and ohmic value (7 to 9 ohm).
KEY:
1 = White
2 = Red
3 = GreenIf failures are detected in the inspections of the charging coil and ignition coil, proceed to replace the
damaged parts.
If there is no tool available to check the stator, when it is established that the ignition problem is not
related to the power control unit nor to other visible causes (bad connections, damaged cables, damaged spark plug), proceed to replace the complete stator. In relation to what described in the preceding
GEN - 12
APE TM BenzinaGeneral guidelines
paragraphs we recommend, therefore, to include in the control tools an Ohm meter with the characteristics outlined above.
C) IGNITION TIMING CHECK
The timing check may be useful for example if the motor is not operating properly (start-up difficulties;
decreased performance and power; difficult or irregular recovery speed etc.); if the failure does not
depend on the carburetion, it may be caused by irregularities of the ignition timing.
This possibility is, however, considered quite rare since, due to the characteristics of the ignition system,
the timing adjustment remains unchanged over time; since the problem arises in most cases from irregular operation of the control unit, to be sure please follow the steps outlined on the side for verification
of the aforementioned device.
If however, after checking the carburetion and the
control unit, the desired improvements are not obtained and there is doubt whether the anomalies
are due to the ignition timing, proceed to check the
latter, operating as follows:.
1) Insert, into the hole (1) a rod of Ø 5 mm.; run the
engine manually until when the end of the rod,
coming into correspondence with the other hole on
the rotor, does not fit.
In this condition the engine is in ignition advance position.
2) Make a mark with white paint on the fan cover, in correspondence with the flap of the flywheel bearing
the reference for the timing.
3) Connect a stroboscopic lamp (type TECNOTEST 130/P or other similar) at ignition; the connection
will be made directly on the spark plug or on the H.V. cable, etc. depending on the type of stroboscopic
lamp available and the specific operating instructions. Then start the engine and bring it to about 4000
- 5000 rpm.
4) The engine will be properly timed to the lamp when the two marks are aligned, or at most, moved to
within a tolerance range of 4° (i.e., within 2° to the right and 2° to the left of alignment position).
5) If the mark of the flywheel rotor is shifted compared to the crankcase more than the allowed tolerance
(or other major irregularities appear during the check), replace the stator or the control unit.
N.B.
FOR VEHICLES OF NEXT PRODUCTION, THE FAN COVER WILL BE FITTED WITH A REFERENCE FOR TIMING, SO THE OPERATIONS DESCRIBED IN POINTS 1 AND 2 WILL NOT BE
NECESSARY.
(*) = without the driver
(*) = including the driver
VanTipper
Kilograms (kg)DeckLong
Deck
Dry weight (*)445450465465
Vehicle weight in running order (with refuelling, tools and accessories)1160116011601160
Load capacity (**)715710695695
VanTipper
TECHNICAL DATA - CHASSIS
Specification
ChassisSheet steel body and a single central longitudinal arm (inte-
grated structure). Removable deck integrated into the struc-
Driver's cabWelded to the chassis.
Seats in driving cabTwo.
Desc./Quantity
ture.
TECHNICAL DATA - ENGINE
Specification
Matriculation dataThe identification codes consist of a prefix (ATM2T on the
chassis, ATM2M on the engine) and a number.
EngineSingle-cylinder, 2-stroke engine, with "rotating" timing and with
three transfer ducts, with transmission and differential grouped
Engine capacity217.9 cm³
Bore X Stroke68 x 60
Compression ratio8.6 : 1
Ignition advance14° ± 1°30' before T.D.C.:
CarburettorDell'Orto SHB 22/22.
FuelPure petrol with separate engine lubrication, "LS" device.
Spark plugMarelli CW7N, or Bosch W4AC; Lodge 3HN; Champion L82;
Maximum speed (CUNA STANDARDS)60÷65 km/h.
Air filterAt the intake of the type with paper cartridge filter.
CartridgeAC AIRAC FLAT PACK.
Consumption (CUNA)~4.3 litres per 100 km.
Km rangeAround 330 Km.
Desc./Quantity
on the axis of the rear wheels.
AC430Z; NGK B7HS.
TRANSMISSION
Specification
Gear ratio First1/48.47
Gear ratio Second1/26.54
Gear ratio Third1/15.56
Gear ratio Fourth1/9.16
Gear ratio Reverse1/80.78
Desc./Quantity
CH - 15
CharacteristicsAPE TM Benzina
STEERING
SpecificationDesc./Quantity
SteeringBuilt with tube pivoted on the arm with front wheel-holder os-
cillating hub.
SUSPENSION
SpecificationDesc./Quantity
Front suspensionBuilt using helical spring.
Rear suspensionBuilt with flexible rubber components in progressive rate. Sus-
pensions consist of hydraulic shock absorbers.
TYRES
SpecificationDesc./Quantity
Wheel rimFrom 3.50".
Front wheel and spare wheel"Normal" type 4.00-12 C- PR6.
Rear wheels"Radial" type 4.00-12 C- PR6. (for example Michelin C-XZX
Front tyre pressure2.8 bar
Rear tyres - inflation pressure4.5 bar
N.B.:
When installing the spare wheel in place of one of the rear wheels (for example due to a puncture) it is recommended to replace
it as soon as possible by reinstalling the "radial" tyre which is more suitable for use.
It is not advisable to install the radial tyre on the front wheel as there would be excessive sensitivity, especially when driving on
twisting or bumpy roads.
PR.6. for deck, van, tipper, Urban Cleansing van and cabriolet
versions).
"Radial" type 4.00-R12 C- PR8. (for example Michelin C-XZX
PR.8. for versions with external fixed elaborations and those
3rd and 4th speed cross control stem19 to 21 Nm (b)
1st and 2nd speed cross control stem25 to 30 Nm (b)
Spark plug18 to 24 Nm
Bolts locking dynamotor to differential crankcase30 to 35 Nm
Bolts locking dynamotor to engine crankcase20 to 25 Nm
Clutch assembly locking nut180 to 220 Nm
Multi-gear pin nut35 to 40 Nm
Fan flywheel locking nut60 to 65 Nm
Silencer manifold fixing nut19 to 21 Nm
Silencer to crankcase fixing bolts18 to 22 Nm
Clutch cover fixing bolt13 to 17 Nm
Cylinder head fixing bolt20 to 23 Nm
Engine to deck fixing bolt20 - 25 Nm
Spring line to frame fixing bolt20 - 25 Nm
Spring line to frame anchor bolt20 to 25 Nm
Oil drain plug22 to 25 Nm
Bolt connecting the crankcase halves13 to 15 Nm
Dynamotor pulley lock nut35 to 40 Nm
Crankcase admission joint lock bolts14 to 18 Nm
Change control support lock bolts14 to 18 Nm
(a)= Specific for version with handlebar
(b)= Specific for version with steering wheel
Torque in Nm
CH - 18
DIFFERENTIAL UNIT
Name
Differential box toothed sprocket lock bolts54 to 64 Nm
Differential cover fixing bolt30 to 40 Nm
Torque in Nm
APE TM BenzinaCharacteristics
FRONT SUSPENSION UNIT
NameTorque in Nm
Shock absorber upper anchoring nut30-40
Shock absorber lower anchoring nut100-120
Steering upper bearing lock gear50 to 70
Wheel rim to drum locking60-70
Wheel locking centre nut100-120
Shoes self-centring plate lock nuts20 - 25
REAR SUSPENSION UNIT
NameTorque in Nm
Wheel to drum lock nut60-70
Drum centre lock nut200 to 240
Shock absorber lower lock nut100 to 140 Nm
Shock absorber upper lock nut30-40
Swinging arm lock nut40-50 Nm
Flexible coupling lock nut40 - 50
Hub to axle shaft lock nut50-70
Hub to wheel axle lock nut140-180
Hub to swinging arm lock nut40 - 50
Shoes self-centring plate lock nut18 to 20 Nm
NameTorque in Nm
Handle bar to steering tube lock bolts42 to 52 (a)
Steering control lever to steering tube lock bolts30 to 35
Steering housing lock nuts20 to 25 (b)
Steering wheel lock nut30 to 35 (b)
Rack pressure roller lid lock nuts8 to 12 (b)
Pressure roller adjustment screw lock nut40 to 60 (b)
Lever holder locking screw7 to 8.5
Brake oil pump piston end stroke screw6 to 10 Nm
Pedal assembly bolt lock nut15 to 25
Stop switch1.5 to 3
Cab doors lock bolt23 to 30
Windshield wiper motor lock8 to 9
Brake pump body lock bolts12 to 20 (a)
Brake pump body lock bolts8 to 12
Floor to cab panel lock bolts20 - 25
Floor to centre cross member lock nuts20 - 25
(a) Specific for versions with handlebar
(a) Specific for versions with steering wheel
Vehicle overhaul data
Assembly clearances
FRAME ASSEMBLY
SHOULDER RINGS
Specification
Shoulder ring (Nominal sizes)B= 1 +0 -0.06 (mm)
Desc./Quantity
CH - 19
CharacteristicsAPE TM Benzina
SHOULDERRING - CLEARANCE "A" UPON FITTING
NameDescriptionDimensionsInitialsQuantity
Shoulder ring1st Oversize1.1 +0 -0.060.15 to 0.50
Shoulder ring2nd Oversize1.2 +0 -0.060.15 to 0.50
Shoulder ring3rd Oversize1.3 +0 -0.060.15 to 0.50
Shoulder ring4th Oversize1.5 +0 -0.060.15 to 0.50
For the clearance check, use the specific equipment.
N.B.
IF YOU DO NOT GET THE CLEARANCE "A" WITH SHOULDER RING "B", REPLACE THE LATTER
WITH A RING LARGE ENOUGH TO GET THE REQUIRED CLEARANCE.
Specific tooling
T.0060824 Control probe axle clearance gear change
Cylinder-piston oversizes
FITTING CLEARANCES
Pistons and cylinders supplied as spare parts by the Manufacturer are marked with the letters of the
alphabet. When both pistons and cylinders are replaced, the pieces with the same letter must be
matched.
NORMAL CYLINDER- PISTON NOMINAL SIZES
Specification
Normal cylinder nominal sizesE=68 +0.025 - -0.005
Normal piston nominal sizesC=67.76 +0.025 -0.005
CYLINDER COUPLING - PISTON
Name
Coupling:1st Oversize68.20 to 68.2267.96 to 67.980.24
Coupling:2nd Oversize68.40 to 68.4268.16 to 68.180.24
Coupling:3rd Oversize68.60 to 68.6268.36 to 68.380.24
InitialsCylinderPistonPlay on fitting
Desc./Quantity
CH - 20
APE TM BenzinaCharacteristics
If, however, the cylinder should be increased, the size "E" (see figure) must exceed the size "C" of the
piston to be installed (marked on the piston itself) of the indicated value, "Cylinder clearance - pis-
ton".
Fitting clearance
Cylinder - piston clearance 0.24
CAUTION
AT REPLACEMENT OF PISTON IN THE CYLINDER, MAKE SURE THAT THE ARROW STAMPED
ON THE PISTON SPROCKET IS FACING THE EXHAUST PORT OF THE CYLINDER.
Piston ring oversizes
SEALINGRINGS
SpecificationDesc./Quantity
Seal ring (Nominal sizes)Diameter = 68 (mm)
CLEARANCE "A" UPON FITTING
Name
Sealing ring1st Oversize68.200.25 to 0.40
Sealing ring2nd Oversize68.400.25 to 0.40
Sealing ring3rd Oversize68.600.25 to 0.40
DescriptionDimensionsInitialsQuantity
Crankshaft alignment check
With the proper equipment (1), check that the eccentricity of the surface of Ø "E" and "F" are contained within 0.03 mm. (the maximum reading limit
on the dial gauge clock); also check the eccentricity of the diameter "D", for which there shall be a
maximum reading of 0.02 mm.
In the case of eccentricities not much greater than
that prescribed, perform the straightening of the
shaft by means of counterweights with a wedge,
or tightening it in a vice (equipped with aluminium
bushings) as needed.
CH - 21
CharacteristicsAPE TM Benzina
Specific tooling
19.1.20074 Crankshaft checking tool
Rod small end bushing - Pin
CONNECTING ROD SMALL END - PIN - ROLLER CAGE
The connecting rods and cages are divided into 4
categories (marked with incisions at the foot of the
same connecting rod and on the cage frames).