Sakai SW770 Manual

Read this handbook thoroughly and understand the whole information
contained before trying to operate, inspect and service your machine!
No. 3498-36120-0
OPERATING &
MAINTENANCE
INSTRUCTIONS
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From SW770 →4SW48 – 10101
SW770HF →4SW48 –
10101
VIBRATING
ROLLER

PREFACE
This operator’s manual serves as a guide for the use of your Sakai SW770, SW770HF
Vibrating Roller for those who are new to the machine, and also for the people who have
experience in using the Machine and want to refresh their knowledge for the machine.
Read this manual thoroughly and try to fully understand the information before operating your
machine. Keep this handbook at hand whenever you do your work.
The main subjects of this manual are:
(1) Basic precautions for safety, (2) Operation, (3) Daily maintenance and (4) Specications.
For operation and maintenance of the engine, refer to the Engine Instruction Manual
furnished separately. Descriptions in this manual can differ from the machine instructions of
your machine due to the results of the investigation and improvement in its design. If you have
any inquiry regarding your Machine or this manual, contact our distributors.
FRONT
REAR
LEFT
RIGHT

CONTENTS
PREFACE
MACHINE AND ENGINE IDENTIFICATION NUMBERS....................................... 1
SAFETY NOTICES................................................................................................ 2
1. BASIC PRECAUTIONS FOR SAFETY ............................................................. 4
1.1 General Precautions ................................................................................ 4
1.2 Preparation for Safe Operation ................................................................ 6
1.3 Before Starting the Engine....................................................................... 7
1.4 After Starting the Engine.......................................................................... 8
1.5 During Operation ..................................................................................... 8
1.6 Loading and Unloading............................................................................10
1.7 Transportation.......................................................................................... 11
1.8 Handling the Battery ................................................................................ 11
1.9 Towing...................................................................................................... 12
1.10 Before Servicing ...................................................................................... 13
1.11 During Servicing ...................................................................................... 14
1.12 Safety Decals........................................................................................... 16
2. OPERATION...................................................................................................... 18
2.1 Instruments and Controls......................................................................... 18
2.1.1 Operator’s station .............................................................................. 18
2.1.2 Gauges, indicator lamps and warning lamps .................................... 19
2.1.3 Switches............................................................................................ 21
2.1.4 Operating levers and pedals ............................................................. 27
2.1.5 Unloader valve .................................................................................. 28
2.1.6 Fuse box............................................................................................ 29
2.2 Handling and Adjustments ....................................................................... 29
2.2.1 Seat adjustment ................................................................................ 29
2.2.2 Seat adjustment (option)................................................................... 30
2.2.3 Adjustment and replacement of scraper............................................30
2.2.4 Disengaging the brake when towing ................................................. 31
2.2.5 Steering wheel position adjustment ..................................................32
2.2.6 Operator’s platform position adjustment............................................ 32
2.3 Operation ................................................................................................. 33
2.3.1 Before-starting inspection ................................................................. 33
2.3.2 Starting the engine............................................................................34
2.3.3 After starting the engine .................................................................... 35
2.3.4 Traveling ............................................................................................ 36
2.3.5 Stopping / Parking ............................................................................. 38
2.3.6 Stopping the engine ..........................................................................39
2.3.7 Check after stopping the engine........................................................40
2.4 Vibratory Operation.................................................................................. 40

2.5 Sprinkler .................................................................................................. 42
2.6 Precautions for Work................................................................................ 45
2.6.1 Compaction operation ....................................................................... 45
2.6.2 When going downhill ......................................................................... 45
2.6.3 On a slope.........................................................................................45
2.7 Applicable Jobs........................................................................................ 46
2.8 After Operation......................................................................................... 46
2.9 Loading and Unloading............................................................................47
2.9.1 Use of a trailer equipped with a winch ..............................................47
2.9.2 Self-propelling ................................................................................... 48
2.10 After Loading the Machine....................................................................... 49
2.11 Transportation.......................................................................................... 49
2.12 Operation in Cold Weather....................................................................... 49
2.12.1 Fuel and lubrication oil ...................................................................... 49
2.12.2 Coolant.............................................................................................. 49
2.12.3 Battery............................................................................................... 50
2.13 When the Cold Season is Over................................................................51
2.14 For a Long Storage Period.......................................................................51
2.15 During the Storage Period ....................................................................... 51
2.16 When the Battery Has Discharged........................................................... 52
2.16.1 Connection and disconnection of booster cables..............................52
3. PERIODICAL MAINTENANCE ......................................................................... 54
3.1 Precautions .............................................................................................. 54
3.1.1 Lifting the machine on a hoist ...........................................................56
3.2 Walk-Around Checking ............................................................................ 57
3.3 Periodical Maintenance Points.................................................................58
3.4 Maintenance Procedure ........................................................................... 60
(1) Every 10 hours or daily...................................................................... 60
(2) Every 50 hours .................................................................................. 61
(3) Every 250 hours ................................................................................ 62
(4) Every 500 hours ................................................................................ 66
(5) Every 1000 hours .............................................................................. 70
(6) As required........................................................................................ 72
3.5 Consumable Parts ................................................................................... 74
3.6 Feeding Water and Lubricants ................................................................. 76
3.7 Electric Wiring Diagram ........................................................................... 78
4. SPECIFICATIONS............................................................................................. 81

– 1 –
MACHINE AND ENGINE IDENTIFICATION NUMBERS
When ordering parts or making inquiries about your machine, the following information is
requested:
(1) Machine model
Indicated on the right side of seat in back.
(2) Machine serial number
SW770
SW770HF 4SW48- ◯◯◯◯◯
(3) Engine serial number
MODEL
CHASSIS No
Location
Location

– 2 –
SAFETY NOTICES
For the safe use of your machine, correct handling and periodical maintenance are of utmost
importance. Thoroughly read the safety precautions described in this manual. Do not attempt
to operate and maintain your machine until you gain a full understanding of these safety
statements.
This manual covers the proper and safe method of driving and handling of this machine for its
intended use. When this machine is used a manner, other than that covered in this manual,
you must assume responsibility for your own personal safety.
In this manual and on the machine, you will nd safety notices. Each safety notice starts with
a signal word as shown below:
DANGER Denotes that there is an extreme hazard. If you fail to
take proper precautions, it is highly likely that you could
be killed or seriously injured (The color of the symbol
is red).
WARNING Denotes that there is a hazard. If you fail to take proper
precautions, you could be killed or seriously injured
(Symbol is orange).
CAUTION Calls attention to safety practices. If you fail to take
proper precautions, you could be injured or cause
damage to the machine (Symbol is yellow).

– 3 –
It is almost impossible for the safety notices in this manual and or the machine to cover all the
potential dangers. Keep alert to possible dangers not mentioned in this manual and on the
decales.
WARNING
Do not operate your machine before you read its operator’s
manual thoroughly.
Incorrect operation can kill or cause injury.
It is your responsibility to operate the machine safely.
☆Non-approved modications can pose safety-related problems. Before making any
modications, consult your distributor. For an injury or damage to the machine caused by
non-approved modications, Sakai accepts no responsibility.
☆Basic precautions for safe operation of your machine are discussed beginning on page 4.
☆To operate and work with your machine, you must be qualied.

– 4 –
1. BASIC PRECAUTIONS FOR SAFETY
1.1 General Precautions
■Read thoroughly the operator’s manual.
•Understandthefunctionsofthecontrolsandgauges.
Familiarize yourself with their location and how to
operatethem.Understandthemeaningofallthe
symbols.
■Obey the worksite rules.
•Followtheworksiterulessuchasmattersforbiddenortobeattendedto,andworking
procedures.
■Wear protective clothing to suit the work.
•Wearclothing,safetyshoesandhardhattosuityourwork.
•Donotwearclothingandaccessoriesthattendtogetcaughtinthecontrolsorprotruded
portions of the machine. Do not wear oily clothing.
•Accordingtothetypeofjobs,wearsafetygogglesormask.
■Know the work area in advance.
•Knowtheterrain,geologyandconditionsoftheroadsurfaceattheworksite.Startworking
after securing safety such as stationing a guardsman or putting up barriers where there is a
risk of falling of the machine or collapse of shoulder.
■Provide against an accident.
•Decideinadvancethemeansofcommunicationinanemergency.Knowthelocationand
use of an extinguisher and rst-aid kit.
■Know the capability of the machine.
•Thoroughlyunderstandtheperformanceofyourmachineandcorrectlyoperatethe
machine to meet the requirements of the job site. Operating the machine beyond its
capabilitiesmayleadtoanaccident.Useyourmachinewithinitscapability.
WARNING: Negligence of these instructions can lead to accidents.

– 5 –
■Do not use a machine which has not been serviced correctly at regular intervals.
•Beforeworking,performnecessaryinspections.Startoperationonlyaftermaking
certain the machine is in good operating condition. If found to be abnormal, report to the
responsible person and have the fault corrected. Operate the machine after making sure
that it is safe to operate.
■Do not allow anyone to enter the work area except for authorized personnel.
•Alwaysconducttheworkpayingattentiontothe
workers around the machine.
■Be careful of hot parts.
•Afteryourmachinehasoperatedforsometime,the
coolant, engine oil and hydraulic uid will become hot
and the pressure will build up. If, in this state, you try to
remove the ller caps, drain the oil or replace the lters,
you can get burned. Perform this work in accordance
with the correct procedures with the machine cooled
down.
•Toremovetheradiatorcap,slowlyloosenthecapto
relieve the pressure with the engine shut down and the
coolant cooled down. (For the radiator cap with a lever,
lift the lever to release the trapped pressure.)
•Whenremovingthellercaponthehydraulictank,releasethetrappedpressurebyturning
it out slowly to prevent the oil from gushing out.
•Donottouchthemufflerwhiletheengineisrunningorimmediatelyafterithasbeenshut
down.You can get burned.
■Be careful with re.
•Thefuel,oil,andanti-freezewillcatchreifopen
ames or ignition sources are used close to them.
Particularly, the fuel is highly ammable.
•Donotsmokeoruseamatchorcigarettelighterclose
to inammables (combustibles).
•Whenrefueling,stoptheengineanddonotsmoke.
•Thellercapsofthefuelandoiltanksmustbekept
tight.
WARNING: Negligence of these instructions can lead to accidents.

– 6 –
■Mount on or dismount from your machine after it has come to a complete stop.
•Forgettingonandoff,facethemachineandusethehandrailandstep.
•Donotjumponoroffamachine,particularlywhenitismoving.
■To handle the hydraulic uid.
•Wearsafetygogglestoprotectyoureyesfromcontact
with hydraulic uid. It can irritate your eyes.
If the uid contacts your eyes, ush with clean water for
15 minutes and get medical aid.
•Theuidcanalsoirritateyourskin.Whenhandlingit,
wear rubber gloves to avoid contact with it. In case of
skin contact, wash with soap and water.
•Becarefulnottoswallowtheuid.Itcancause
diarrhea and emesis.
If swallowed, do not try to vomit. Get medical help
immediately.
1.2 Preparation for Safe Operation
■Clean the step, operator’s station and oor board.
•Donotplaceparts,toolsorunnecessaryarticlesonthestep,operator’sstationandoor
board.
•Keepthestep,oorboard,controlsandhandholdsfreefrommuds,oil,iceorwater,asthey
can cause slippage. Repair them if found to be damaged. Tighten loose bolts.
•Keepyourbootsolesfreeofoilormuds.Theycanslip,leadingtoanaccident.
■Inspect your machine before operation
•Checkyourmachinefordamagesuchascracksanddeformation.Iffoundtobeabnormal,
operate the machine after taking a proper measure to secure safety.
•Checkthelevelofuids(fuel,engineoil,coolant,anti-freezeandhydraulicoil).Addas
necessary.
•Checktheareawherethemachinehasparkedforsignsofleakageofoil,fuelandwater.If
any leakage is noticeable, determine the cause and make corrections immediately.
WARNING: Negligence of these instructions can lead to accidents.