Makita 5077B User manual

185 mm (744”) MODEL 5077B
Equlpped wlth Electric Blade Brake
Blade diameter
185
mm (7-1/4”)
INSTRUCTION MANUAL
Max. cutting capacity No load speed Overall length Net weight
62
mm (2-318”) 4,300 Rimin. 439 mm (17.114”) 6.3 kg (13.9 Ibs)
DOUBLE
INSULATION
SPEC IF I CAT IONS

IMPORTANT SAFETY INSTRUCTIONS
(For All Tools)
WARNING: When usingelectrictools, basicsafety precautions
should always be followed to reducethe risk of fire, electric
shock, and personalinjury, includingthe following:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
2
Keepwork area clean. Clutteredareas and benchesinvite injuries.
Considerwork area environment. Do not use powertools in damp or wet
locations. Keepwork areawell lit.
Do notexpose powertoolsto rain. Do not
usetool in presenceof flammable liquidsor gases.
Keepchildren away. All visitorsshouldbe kept away from work area. Do not
letvisitors contact
tool or extensioncord.
Store idletools. When not in use, tools shouldbe locked-upor stored ina
dry, highplace
- out of reachof children.
Do not force tool. It will do thejob betterandsafer at the ratefor which it was
intended.
Usecorrecttool. Do notforce smalltool or attachmentto do the job of a
heavy-dutytool.
Do not use tool for purposenot intended;for example,don’t
usecircularsaw for cuttingtree limbsor logs.
Dressappropriately. Do notwear looseclothingor jewelry. They can be
caught in movingparts. Rubber glovesand non-skidfootwear are
recommendedwhen workingoutdoors. Wear protectivehaircovering
to
containlong hair.
Use safety glasses. Also useface or dust mask if cuttingoperationis dusty.
Do not abuse cord. Never carrytool by cord or yank it to disconnectfrom
receptacle. Keepcord from heat,oil, and sharp edges.
Secureworkpiece. Useclampsor a viseto holdwork. It is safer than using
your hand; it also leavesboth handsfree
to operatetool.
Do not over-reach. Keepproperfooting and balanceat all times.
Maintaintools with care. Keeptools sharp and cleanfor betterand safer
performance. Follow instructionsfor lubricatingandchangingaccessories.
Inspecttoolcords periodicallyand, if damaged, have repairedby authorized
servicefacility. Inspectextensioncords periodicallyand replace
if damaged.
Keephandlesdry,clean, and free fromoil and grease.
Disconnecttools when not in use, beforeservicing,and when changing
accessories, suchas blades,bits, and cutters.
Removeadjusting keysand wrenches. Checkto ensurethat keysand
adjustingwrenches are removedfrom
tool beforeturningthe tool on.
Avoid unintentionalstarting. Do notcarry plugged-intool with finger on
switch. Be sure switchis OFF when pluggingin.
Checkdamaged parts. Beforefurther useof the tool, a guardor other part
that is damaged shouldbecarefullycheckedto determinethat it will operate
properlyand performits intendedfunction. Checkfor alignmentof moving
parts, bindingof movingparts, breakageof parts, mounting,andany other
conditionsthat may affecttool operation.
A guardor other partthat is damaged
shouldbe properlyrepairedor replacedby an authorizedservicecenter unless
otherwiseindicatedelsewhere
in this instructionmanual. Defectiveswitches
shouldbe replacedby an authorizedservicecenter.
Do not usetool if the
switchdoes
not turn it on andoff.

17. Extensioncords. Makesure your extensioncord isin good condition. When
using an extensioncord, be sure
to use one heavyenough to carry the current
your productwilldraw. An undersizedcordwill cause a drop in linevoltage
resulting in
loss of powerandoverheating. Table 1 showsthe correct size to
use dependingon cord length and nameplateampere rating. If in doubt, use
the nextheavier gauge. The smaller the gauge number, the heavierthe cord.
Table
1. MINIMUM GAUGE FOR CORD SETS
0-6
6 - 10
10 - 12
I 12 - 16
I
Ampere Rating
More NotMore
Than Than
18
18
16
14
Total Length of Cord in Feet
0-25 1 26-50 1 51-100 1 101-150
16 16 14
16 14 12
16 14 12
12 Not recommended
I
AWG
I
18. Outdoor useextensioncords. When tool is usedoutdoors, use only
extensioncords intendedfor outdoor useand
so marked.
19. Stay alert. Watch what you are doing. Do not operatetoolwhen you are tired.
20. Guard againstelectric shock. Preventbody contact with groundedsurfaces,
for example: pipes, radiators, ranges, refrigerator enclosures.
21. Replacementparts. When servicing, use only identical replacementpart.
22. Polarizedplugs: To reducethe risk of electric shock, this equipmenthas a
polarizedplug(one blade is wider thanthe other). This plugwill fit ina
polarized outlet only one way.
If the plugdoes not fit fully inthe outlet, reverse
the plug.
If it stilldoes not fit, contact a qualifiedelectrician to installthe proper
outlet.
Do not changethe plug in any way.
3

VOLTAGE WARNING: Before connectingthe tool to a powersource
(receptacleoutlet,etc.) be surethe voltage suppliedis the same as that
specifiedon the nameplateof the tool.
A powersource with voltage greater
thanthat specifiedfor the tool can result in SERIOUS INJURYto the user,as
well as damage the tool.
If in doubt, DO NOT PLUG IN THE TOOL. Usinga
powersourcewith voltagelessthanthe nameplateratingis harmfulto the
motor.
4

ADDITIONAL SAFETY RULES
1. Keep Guards In Place and In Working Order.
Never wedge or tie lower guard open. Check operation of lower guard be-
fore eachuse. Don’t use
if lower guarddoes not close briskly over saw blade.
CAUTION:
If saw isdropped, lowerguard may be bent, restrictingfull return.
2. Keep Blades Clean and Sharp.
Sharp blades minimize stalling and kickback.
3. DANGER: Keep Hands Away From Cutting Area.
Keep hands away
from blades. Don’t reach underneath work while blade
is rotating. Don’t attempt to remove cut material when blade
is moving.
CAUTION: Blades coast after turn off.
Largepanels must be supportedas
shown
in Fig. 1 tominimizethe risk
of blade pinching and kickback.
When cutting operation requires
the restingof thesaw onthework
piece, the saw shall be rested on
the larger portion and the smaller
piece cut off.
4. Support Large Panels.
6+4!k=a
To avoid kickback, do support board
or panel near the cut.
Fig.
Don‘t support board or panel away
from the cut.
Fig. 2
5. Use Rip Fence.
6. Guard Against Kickback.
Always use a fence or straight edge guide when ripping.
Kickback occurs when the saw stalls rapidly and is driven back towards the
operator. Releaseswitch immediatelyif blade binds or saw stalls. Keep blades
sharp. Support large panels as shown in Fig.
1. Use fence or straight edge
guide when ripping. Don’t force tool. Stay alert exercise control. Don’t re-
move saw from work during a cut while
the blade is moving.
5

NEVER place your hand or fingers
behindthe saw. If kickback occurs,
the saw could easily jump back-
wards over your hand, possibly
causing severe injury.
Fig.
7. Lower Guard. Raise lower guard with the retracting handle.
8. Adjustments. Beforecutting be sure depth and beveladjustments are tight.
9. Use Only Correct Blades In Mounting. Don’t use blades with incorrect size
IO. Avoid Cutting Nails. Inspect for and remove all nails from lumber before
holes. Never use defective or incorrect blade washers or bolts.
cutting.
11. When operatingthe saw, keepthe
cord away from the cutting area
andposition
it so that it will not be
caught on the workpiece during
the cutting operation.
Operate
with proper hand support,
proper workpiece support, and
supply cordroutingaway from the
work area.
A typical illustration of proper hand
support, workpiece support, and
supply cord routing.
WARNING:
It isimportanttosupport the workpiece properly and tohold the saw firmly
toprevent
loss of controlwhich could cause personalinjury. Fig. 4 illustrates
typical hand support of the saw.
6

12. Placethe wider portionof the saw base on that part of the workpiece which
issolidly supported, notonthe sectionthat will fall off whenthe cut is made.
As examples, Fig. 5 illustrates the RIGHT way tocut off the end of a board,
andFig. 6 the WRONG way. Ifthe workpiece is short or small, clamp it down.
DON'T TRY TO HOLD SHORT PLECES BY HAND!
Fig. Fig.
13. Neverattempt tosaw withthe cir-
cular saw held upside down in a
14. Before setting the tool down after completing a cut, be sure that the lower
(telescoping)guard has closed and the blade has come to a complete stop.
SAVE THESE INSTRUCTIONS.
7

Removing or installingsaw blade
CAUTION
:
Always be sure that the tool is switched off and unplugged before removingor installing
the blade.
To remove the blade, press the shaft lock
so that the blade cannot revolve and use
the wrench to loosen the hex bolt clock-
wise. Then remove the hex bolt, outer
flange and blade.
To install the blade, follow the removal
procedure in reverse. BE SURE TO
TIGHTEN THE HEX BOLT SECURELY.
CAUTION
:
.Be sure the blade is installed with teeth
pointingup
at the front of the tool.
*Use only the Makita wrenches to install
or remove the blade.
*One side
of the inner flange is for 5/8"
hole diameter of the blade; the other side
is for 13/16" holediameter.
inner flange \
Fig. 9
Blade Outer flange
I
Fig. 1(
Use the correct side for the hole diameter of the blade you intend to use. Mounting the
bladeon the wrong side can result indangerous vibration.
a

Adjustingdepth of cut
Loosen the lever on the depth guide and
move the base up or down. At the desired
depth of cut, secure the base
by tightening
the lever.
Fig. 1
CAUTION :
Use a shallow depth of cutwhen cutting thinworkpiece for cleaner, safer cuts.
*After adjustingthe depth of cut, always tighten the lever securely.
Bevel cutting
Loosen the lever onthe bevel scale plateon
the front of the
base. Set for the desired
angle
(0" -45') by tiltingaccordingly,then
tighten the lever securely.
Sighting
For straight cuts, alignthe
left notch inthe
front of the base with your cutting line on
the workpiece. For
45" bevel cuts, align
the right notchwith
it.
Bevel scale plats
For straight For 45"
cuts bevel
cuts
Base plate
I1
I
Fig. 1
9

Switch action
To start the tool, simply pull the trigger.
Release the trigger to stop.
CAUTION
:
Before plugging in the tool, always check
to
see that the trigger switch actuates pro-
perly and returns to the
"OFF" position
when released.
Operation
Grasp the rear handle with your right hand,
the front grip with your
left. Set the base
plate on the workpiece to be cut without
the blade making any contact. Then turn
the tool on and wait untilthe blade attains
full speed. Now simply move the tool for-
ward over the workpiece surface, keeping
it flat and advancing smoothly until the
sawing
is completed. To get clean cuts,
keep your sawing line straight and your
speed of advance uniform.
Guide rule
The handy guide rule allows you to do
extra-accurate straight cuts. Simply slide
the guide rule up snugly against the side
of the workpiece and secure
it in position
with the wing bolton the front of the base.
It also makes repeated cuts of uniform
workpiecewidth possible, too.
Trigger switch
-
Fie. 1!
Fig. 16
10

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unplugged before attempting to perform
inspection or maintenance.
Replacingcarbon brushes
Remove and check the carbon brushes
regularly. Replace when they wear down
to the limit mark. Keep the carbon brushes
clean and free to slip in the holders. Both
carbon brushes should be replaced
at the
sametime. Use only Makitacarbon brushes.
Use
a screwdriver to remove the brush
holder caps. Take out the worn carbon
brushes, insert the new ones and secure the
brush holder caps.
I
Limit mark
Fig. 1'
Screwdriver
I
1
Fig. 18
To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or
adjustment should be performed by Makita Authorized or Factory Service Centers,
always using Makita replacement parts.

OPTIONAL ACCESSORIES
The accessorieslistedinthis manualareavailableatanextracostfromyour Makitadistributoror Makitafactory
servicecenter. Servicecenters are listedon the warrantycardpackedwithyour
tool.
CAUTION :
These accessories or attachments are recommendedfor use with your Makita tool specified in this
manual. The use of any other accessories or attachments might present
a risk of injury to persons.
The accessories
or attachmentsshould be used only inthe proper and intended manner.
Part
No. Diameter
0 Guide rule
Part No. 164095-8
Hole
No.
diameter teeth
0 Wrench 13
Part No. 782016-4
Part
No.
0 Steel carrying case
Part No. 823204-5
Hole
No.
Diameter diameter teeth
Saws
Chiseltoothcombination saw blade
Hole
Part
No. Diameter diameter
For rip and cross-cutwork.
Most frequently used for
general carpentry.
No.
teeth
Carbide-tipped saw blade
Faster,smoother, longer sawing
without blade sharpening.
Cuts wood, drywall, plastics,
hardwood, etc.
518”
7-1 14-
792446-1 I (185 mm) I
40
792436-4 I I 5/8” I 20
Combinationsaw blade
I 1- I
12

May-26-'87 US
185 mm (7-1/4")
HYPOID SAW
Model 5077B
Note The switch, noise suppressor and other part conftguratlons
may differ from country to country.
13

MODEL 50778
'iLM & DESCRIPTION
May-26-'87 US
'iLM At., DESCRIPTION
MACHINE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
36
37
38
39
40
1s
-
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
3
1
1
1
2
1
4
4
2
2
1
1
1
1
2
1
1
1
1
4
-
Hex Flange Hesd Bolt M8x20
Outer Flange 40
Inner Flange 40
Spindle
Woodruff Key 4
Bearing Retainer 23-36
Ball Bearing 6003LLB
Retaining Ring 5-42
Safety Cover
Tension Spring 4
Pan Head Screw M5x20 !With Washer]
Bsarlng BOX
Hex Socket Head Bolt M6x12
Rubber Pin 4
Retaining Ring S-16
Hypoid
Gear36
Sleeve 16
Blade
Care
Hex Socket Head Bolt M6x25 !With Warherl
Rubber Sleeve 6
Countersunk Head Screw M6x28
Indication Label
Rivet 0-5
Name
Plate
Flat
Washer 5
Hex Socket Head Bolt M5x30
Brush Holder Cap
Carbon Brush
Motor Housing
Cord
Cord Guard
Strain Relief
Pan Head Screw M4x18 lWith Washer)
Handle Cover
Rubber Pin 4
Switch
Dust cover
Pan Head Screw M4x25 IWRh Washer)
~aii
BearlngwLLe
MACHINE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
76
-
2
2
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-
Hex Socket Head Bolt M5x14
Flat Washer 5
Side Grip
LWB,
Pan Head Screw M4x10 IWith Washed
Ring Spring 8
Pin 6
Retaining Ring S- 17
Gear
Housing
Seal Ring 17
Ball Bearing 6203LLB
Binding Head
Screw M5x12
Fan 92
ARMATURE ASSEMBLY
lWith Item 52 & 54 - 571
Insulation Washer
Ball Bearing 608LB
Baffle Plate
Hex Bolt M5x65 lWith Washer]
FIELD ASSEMBLY
Flat Washer 8
Base
wing em ~5x10
Cap Square Neck Bolt M8x24
Screw M5x12
Flat Washer 8
Flat Washer 8
LeYe, Plate
Lock Plate
Hex Nut MB
Pan Head Screw M4xB IWith Warherl
Spring
Pin 6-45
Hex Bolt M8x28
Lock
Plate
Lever Plate
Flat Washer 8
Flat Washer 8
Pan Hesd Screw M4x8 (With Washer)
compresrlon sprmg 7
Note: The switch and other part specifications may differ from country to country.
14

MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to
be free of defects from workmanship and materials for the period
of ONE YEAR from the date of
original purchase. Should any trouble develop during this one-year period, retum the COMPLETE
tool, freight prepaid, toone of Makita’s Factory or Authorized Service Centers. If inspection shows
the trouble is caused by defective workmanship or material, Makita will repair (or at our option,
replace) without charge.
This Warranty does not apply where:
repairs have been made or attempted by others:
repairs are required because of normal wear and tear:
The tool has been abused, misused or improperly maintained;
alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM OFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,”
AFTER THE ONE-YEAR TERM OFTHIS WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state. Some states do not allow the exclusion or limitation
of incidental or consequential
damages,
so the above limitation or exclusion may not apply to you. Some states do not allow
limitation on how long an implied warranty lasts,
so the above limitation may not apply to you.
c___
MakitaCorporation of America
2650 Gainesville Hwy
Buford, GA 305 18
MCA - a195
883588E065
PRINTED IN U.S.A.
1995-9-c