Jarvis Wellsaw 400 User manual

NOT FOR HOME USE
Owner's Manual For:
~ Wellsaw
PORTABLE POWER SAW
MODEL 400
Table Of Contents: Page
-Notice to Employer and Safety Director 2
-Notice to Operators, Maintenance and Cleanup Personnel 3
-Parts Diagram , " 4
-Parts List 5
-Installation Instructions 6
-General Safety Instructions ...................................
.. 7
-Operation Instructions 8
-Maintenance Instructions 10
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
JARVIS®
UNITED STATES
OF AMERICA
d 4 ~
FAX [phone] TEL. [phone]

notice to employer
~~Wellsaw
and safety director
MODEL 400
pg 2 of 12
Keep hands clear.
NOTICE TO EMPLOYER AND SAFETY DIRECTOR
AVOID INJURY
1. Remove and repair any tool that malfunctions. AU personnel must be instructed to remove any
malfunctioning equipment.
2. Ensure that all employees who use this tool are trained in the proper use of this tool and are aware
of the dangers that may arise if they do not follow the procedures outlined in this brochure.
3. Enclosed arefour (4) copies of "NOTICETOOPERATORS,MAINTENANCE AND CLEAN-
UPPERSONNEL." Post onecopy onthe employees' bulletinboard;giveone copy to operator(s);
give one copy to the maintenance foreman; and give one copy to the sub-contractcleanup / internal
cleanup foreman. Additional copies will be provided upon request.
4. The tool is designed and intended to be powerful. That fact should be obvious to your employees,
but you must emphasize it to them.
5. Never make modifications or alterations to the tool. Replace any missing or illegible labels.
6. Always disconnect the tool from its power supply when it is not in use.
7. Follow our installation and maintenance instructions for proper installation and care of the tool.
8. Ensure thatemployees wear eye protection in accordance with OSHA's eye and face protection re-
quirements (29 CPR 1910.133) at all times.
9. HandlWristJArm injury and otherCumulative TraumaDisorders may result from repetitive work,
motion
or vibration. You must make youremployees aware of hazards, symptoms of injury and ap-
propriateprevention. SeeOSHA's "ErgonomicsProgramManagementGuidelinesforMeatpacking
Plants."
10. Avoid injury. Do not pennit the tool to be misused.
11. If you resell or distributeaJarvisproduct, you mustprovidethe purchaserwiththe appropriate safe-
ty sheets and tool brochure. Additional copies of safety sheets and tool brochures will be provided
upon request.
->"RJs-:
" i-. .......
PRODUCTS CORPORA·nON
'\... ...
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
JARVIS®
UNITED STATES
OF AMERICA
FAX 86Q-347-£978 TEL. [phone]

notice to operators, maintenance
~Wellsaw
and cleanup personnel
pg 3 of 12 MODEL 400
Keep hands clear.
NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PERSONNEL
REMOVE ANY MALFUNCTIONING TOOL FROM SERVICE
REPORT ANY PROBLEMS TO YOUR SUPERVISOR
1. Always wear eye protection in accordance with OSHA's eye and face protection requirements (29
CPR 1910.133), and when needed, a dust mask.
2. Do not operate near flammable liquids or in gaseous atmospheres.
3. Do not operate in outdoor locations or in damp or wet locations.
4. Do not overreach; keep proper footing and balance when using the tool.
5. Disconnect the power supply in accordance with OSHA's lockoutltagout procedures (29 CFR
1910.147) before changing the blade.
6. Disconnect the power supply in accordance with OSHA's lockoutltagout procedures (29 CPR
1910.147) before perfonning any repair
or maintenance.
7. Disconnectthe powersupply - or have the powersupply disconnected-in accordance with OSHA's
lockoutltagout procedures (29 CPR 1910.147) before perfonning any cleanup.
8. Disconnect the power supply when the tool is not in use.
9. Never putfingers, hands or otherparts of the body on the cutting edge of the blade or in the cutting
path.
10. Test the tool priorto use or daily. Depress the trigger and the tool should start. Release the trigger
and the tool should stop.
If the tool malfunctions, remove itfrom service and report or repair it im-
mediately.
11. Never depress the trigger unless you are going to use or test the tool.
12. Never make any alterations to the tool. Report or replace any missing or illegible labels.
13. Always use both hands when starting and operating the tool to avoid the risk of possible "kick back"
or "recoil." Continue holdingthe tool with both hands until the saw bladecomes to a complete stop.
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA
JARVIS®
6205005,,:
FAX [phone] TEL. [phone]
•

~Welisaw
parts diagram
MODEL 400
pg 4 of 12
7
53
~50
y51
~ j2
11----;
21 y6----
12
13 0
lS
\ •
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
JARVIS®
,-
UNITED STATES OF AMERICA
6205005:::
FAX [phone] TEL. [phone]

~Wellsaw
parts list
pg 5 of 12 MODEL 400
ITEM
JARVIS
PART NO.
OLD
PART NO. PART NAME
QTY
1 1063112 501022--005 brush cap 2
2 1063111 501022--004 brush and spring 2
3 1063110 501022--003 brush
holder 2
4 1002191 501002 top cap 1
5
1055427
100101--002 screw, set of 12
4
6 1021215 100423--003 ball bearing 1
7 1063119 501224--Q03 stator 115v 1
7 1063120 501224--Q04 stator 230v 1
8 1027040 501021 stator stud 2
9 1007164 100105--001 locknut 4
10
1063117 501224--Q01 armature 115v 1
10
1063118 501224--Q02 armature 230v
1
11 1026072 501225 pinion 1
12 1021227 100422--004 ball bearing -1
13
1035193
501120--001 seal 1
14
1016213
501001--005 housing 1
1017030
501023 info label 115v, English 1
1017031 501084 info label 230v, English 1
1017052 info label 115v, French
1017235 info label 230v, French 1
1054173
label retaining screw 4
15 1063109 100647 grommet 1
16
1013137 501295 clamp ring 1
17 1063125 501294 strain relief 1
'18 3001008 501336 cord and plug 115v 1
18 3001011 501337 cord and plug 230v 1
19 1055438 100101--003 screw, set
of 12
3
20 1005038 100739--Q01 switch 1
21 1007166 501376
gear stud nut 1
22
1004149 100426--001 thrust bearing race 1
23
1021218 100425--D01 needle thrust bearing 1
24 1020133
501377 gear stud 1
25 1514502 100069-013 snap ring 1
26 1021216 100424--Q01 needle bearing -2
27 1027043
501081 drive
stud'
1
28
3026024
501223
gear and stud 1
29 1029185 501082
spacer
1
30 3028030 501053 connecting rod & bearing 1
31 1035191 501008 gasket 1
32
1002193 501005 bottom plate 1
33
1055426 100101--001 screw 4
34 1062003
gear grease 16 oz.
35 1002203
501004--002 handle cover
1
36 1055439 100102--002 screw 5
37 1002192 501003 blade support clamp 1
38
1055424 100035--D02 set screw 1
39
1036120 501273 insert 3
40 1027048 501272
stud -3
41 1007162 100022--006 cap nut 6
42
1012047 501043
"u" clip (rubber) 1
43 1012046 501042
"s" clip 1
44
8030031 100099-001 hex key 1
~.~-
\. "
- ... ~
JARVIS®
ITEM
JARVIS
PART NO.
OLD
PART NO.
PART NAME QTY
45
46
47
48
49
50
51
52
55
56
1027041
3065009
1035192
1036116
1036117
10060i1
1027042
1055429
1015006
1062023
501046
501068
501103
501171
501186
501066
501065
100102-003
501174
501083--005
rod stud
push rod
and stud
seal_
bushing _
bushing
spacer
knob
handle stud
screw
deflector
blade support grease
1
1
1
1
1
1
1
2
2
1
blades, blade supports
and accessories
JARVIS
OLD
ITEM
_A
PART NAME
PART NO. PART NO. QTY
(1023125
53
53
1023126
53 1023128
"53
1023127
1023129
-53
'53 1023120
1023-166
54
53
·1058065
-,54 1058069
54 1058066
54 1058097
3058037
501104
501108
501151
501116
501155
501121
50100TT
501071
501058T
blade 8". (8 tooth) $1 " 1
blade 8" (12
tooth~ -1
blade 8" (knife) .
.p::...~
1
blade 16" (8'tooth) 1
blade 16" (knife) 1
blade 16" (comboknife
81.)
1
blade 24" (knife) 1
blade support 8" 1
blade sup. 8", for dp. gage 1
1
b~de support 16"
blaCle support 24" 1
501352--002
depth gage assembly 1
replacement kits
ITEM
JARVIS
PART NO.
OLD
PART NO.
PART NAME
QTY
3063010 501351-001 armature and bearing (no
pinion) 115v
3063011 501351--002 armature and bearing (no
pinion) 230v
3063007 501235--001 armature, bearing and
pinion 115v
3063008
501235-002 armature, bearing and
pinion 230v
3063013 501232 armature and pinion 115v
3063014 501233 armature and pinion 230v
3001008 501006 cord assembly 115v
3001010 501089 cord assembly 230v
3026023 501088 gear & bearing assembly
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA
FAX [phone] TEL. [phone]
/

~WoIIsaw
installation instructions
MODEL 400
pg 6 of 12
INSTALLATION INSTRUCTIONS
These instructions have been prepared to assure you of
satisfactory operation through properuse of yourJarvis
Wellsaw.
Read them carefully and kegp them for future reference.
POWER SUPPLY
Your Jarvis Wellsaw operates on 50
or 60 Hz., single
phase alternating current. Its voltage rating is indicated
on the name plate (either
115 or 230 Volt). If an exten-
sion cord is to be used, be sure that the wire size is ade-
quate to maintain full line voltage to the tool.
GROUNDING
Your Jarvis Wellsaw should be grounded to prevent the
user from electric shock or electrocution. The Jarvis
Wellsaw is equipped with an approved three conductor
cord and threeprong grounding-typeplug tofit the prop-
er grounding-type receptacle. The green conductor in
figure A figure B
grounding blade grounding blade
Do not use any adapters with the Jarvis Wellsaw
EXTENSION CORDS
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy
enough to carry the current your Jarvis Wellsaw will
draw. An undersized cord will cause a drop in line volt-
age resulting inloss
of powerandoverheating. Thetable
below shows the correct size to use depending on cord
length and nameplate ampere rating.
If in doubt, use the
next heavier gage. The smaller the gage number,
.'l~
heavier the cord.
Minimum Wire Gage for Extension Cords
Volts Total Length
of Cord in Feet
120
0-25 26-50
51-100 101-150
240
0-50
51-100
101-200 201-300
Amp Rating Wire Size (AWG)
the cord is the grounding wire. Neverconnect the green
0--6 18
16 16 14
wire to alive terminal.
If yourJarvisWellsaw is the 115
6-10 18
16 14 12
volt model, it has a plug that looks like figure "A".
If
yourJarvis Wellsaw is the 230 volt model, it has a plug When tool is used outdoors, use only extension cords la-
that looks like figure "B". beled for outdoor use.
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
JARVIS®
UNITED STATES
OF AMERICA
6206005::: FAX
860-347-6978 TEL. [phone] , f

~Walisaw
general safety instructions
pg 7 of 12 MODEL 400
I'~
"/
GENERAL SAFETY INSTRUCTIONS
For Operators, Employers and Maintenance Personnel
WARNING: When using electric tools, basic safety precautions should always be followed to
reduce the risk
of fire, electric shock and personal injury, including the following:
Working Precautions:
1. READ ALL INSTRUCTIONS.
• Know your Jarvis Wellsaw and understand safety notices. manuals and instructions
in the literature provided. Become familiar with the Jarvis Wellsaw, its dangers,
limitations and applications.
2. INSTALL THE TOOL PROPERLY.
• Ground the tool. See instructions provided in the installation section of this manual.
• Use the proper extension cord. See instructions provided in the installation section
of this
manual.
3. USE
THE RIGHT TOOL AND ATTACHMENTS.
• Select the proper tool to do the job. The Jarvis Wellsaw is designed for meat and bone
cutting; wood cutting;
non-woven and geo-textile cutting. Do not use the Jarvis Wellsaw
for non-intended purposes.
4.
KEEP WORK AREAS CLEAN AND WELL LIT.
• Cluttered, oily and poorly lit work areas invite accidents.
• Keep visitors a safe distance from the work areas.
5. AVOID DANGEROUS ENVIRONMENTS.
• Do not expose the power tool to rain.
•
Do not use the tool in presence of flammable liquids or gases.
6. WEAR
PROPER APPAREL.
• Avoid being pulled by moving parts of the Jarvis Wellsaw. Do not wear loose clothing or
dangling objects. Restrain long hair.
7. MAINTAIN THE JARVIS WELLSAW AND ACCESSORIES WITH CARE.
• Keep the Jarvis Wellsaw sharp and clean for the best and safest performance.
• Follow the instructions for lubricating and changing the blades.
• Inspect the Jarvis Wellsaw regularly.
If the Jarvis Wellsaw is malfunctioning, remove it
from service and report any problems to your supervisor.
• Keep the handles dry, clean and free from oil and grease.
8. STAY ALERT.
• Watch what you are doing and use common sense.
9. SAVE
THESE INSTRUCTIONS.
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES
OF AMERICA
JARVIS®
FAX
860-347-6978 TEL. [phone]
•

~WeIIsaw
operation instructions
MODEL 400
pg 8 of 12
OPERATION INSTRUCTIONS
Before starting regular operation of the JarvisWellsaw,
werecommendthatyou makeafew cuts withafme pitch
blade to acquaint yourself with the operation
of the tool
before using any of the coarser blades.
A. AVERAGE CUTTING AND RIPPING:
1. Place your work piece on a solid support at a
convenient working height.
2. Adjustthe material so thatthe line
of cut will be
close to the support. Secure it fmnly.
3. To prevent starting torque
of the motor from
pullingthe saw away from line
of cut, theopera-
tor should make a few short strokes until the
bladehas cutintothe material about 1/4inchbe-
fore squeezing trigger switch.
4. Both hands should be on the saw at all times
while cutting. Continue holding the tool with
both hands until the saw blade comes to a com-
plete stop.
S. The saw should be kept at a 90 degree angle to
the work piece while cutting material that is
thicker then 1 inch. For thin materials a
12-
toothbladeanda 30 degreecuttingangleare rec-
ommended.
6. The saw shouldbe pushed firmly into the mate-
rial while cutting.
7.
Do not allow the saw blade or the blade support
to leave the work piece while cutting.
8. Never allow the saw blade to float into material
while cutting.
9. Never permit any part
of the saw, except the
blade
or the blade support, to contact the work
piece during the cut.
B. LARGE CROSS SECTIONS:
1. Rocking the saw inthe cutwill speedupthe cut-
ting action.
An 8-tooth blade is recommended.
C. SINKING
THE BLADE THROUGH A SUR-
FACE:
1. Your powerhand saw is notdesignedfor regular
use in starting its own hole by sinking blades
through a surface, commonly called "plunge
cutting".
If attempted, the operator must:
a. Keep the saw blade as parallel to the work
as possible.
b. Immediately, as the blade makes contact
with the work piece, start to draw the saw
back slowly from the starting point.
c. Repeatthe operationoutlinedin"b",
if nec-
essary.
d. Have room to draw the saw at least
4-6 in-
ches before cutting through a 1 inch thick-
ness.
e.
Do not force the saw blade, but keep it
moving slowly on the draw back from the
starting point. After the break through cut
hasbeenmadeandtheend
of thebladesup-
port extends through the material at least
1-1/2 inches, the saw may be tipped to a
normal cutting angle.
D. NOT FOR
CUITING METAL:
1. Due to the blade speed and design, your Jarvis
Wellsaw is not for cutting metal.
E. NOT FOR
CUITING SMALL RADII:
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA
JARVIS®
FAX [phone] TEL. [phone]

~WaIIsaw
maintenance instructions
MODEL 400 pg 10
of 12
:,...
MAINTENANCE INSTRUCTIONS
7.
Install handle stud (item 51) using two larger
Alwaysdisconnect
the sawfromitspowersupply
before performing
any maintenance.
Item numbers: refer to the parts diagram on page 4.
A. LUBRICATION:
1. The gear case should be kept 1/3 full of grease.
To check the grease level, remove the bottom
plate
and its gasket. It should be checked every
thirty daysfor saws thatare usedmoderatelyand
every two weeks for saws that are used daily.
If
replacement grease is required it should be ob-
tained
from Jarvis.
B. BLADE SUPPORT INSTALLATION:
1. Tap (3) inserts (item 39) gently into the bores on
blade support clamp (item 37).
2. Align the blade supportclamponto saw housing
(item 14), making sure the inserts stay in place.
3. Assemble(3) studs (item40) withcapnuts (item
41) and placethemthrough the saw housing and
the blade support clamp.
4. Draw down all (3) cap nuts evenly until the in-
serts are bottomed out into the saw housing.
5. Remove the
cap nuts and the blade support
clamp. (The inserts should now be properly set
into the saw housing).
6. Assemble blade support (item 54) over the in-
serts
on the saw housing. Place the blade sup-
port clamp on the saw housing
and fasten with
the studs, the
cap nuts and phillips screws (item
36).
phillips screws (item 52).
C.
BLADE REMOVAL:
NOTE: Your Jarvis Wellsaw is equipped with a
hex key (item 44) for removing the blade. This
wrench is located in the housing directly behind
the blade support knob (item 50).
1. Insert the hex key through the hole in the outer
end of blade (item 53) and pull the blade to the
outer
end of the stroke.
2. Loosen the blade holding set screw (item 38)
about 1/2 turn. The set screw must be loosened
through the hole in the housing.
3. Reinsert the hex key in the hole at the outer end
of the blade and pull the blade out.
D. BLADE INSTALLATION:
...
1. Inserthexkey(item44) into set screw (item38).
2. Fasten the set screw (through the hole in hous-
ing) into the hole in the end
of push rod (item
46). The hole in the housing must be aligned
with the hole in the push
rodfor the setscrew to
befastened. (It maybe necessaryto turn the ar-
maturefanto adjustthepushrodproperly). Do
not tighten.
3. Align blade (item 53) with blade support (item
54). The blade should extend approximately 3
inchesfrom the end
of the blade support. t
4. Slide the blade onto the blade support until the
crimp in the blade is touching the end
of the
blade support.
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
JARVIS®
UNITED STATES
OF AMERICA
FAX [phone] TEL. [phone]

~Wellsaw
maintenance instructions
pg 11 of 12 MODEL 400
5. Usearubberhammerandtapthe end of bladeto-
wards the body
of the saw until the crimp in the
blade slides into the slot in the blade support.
6. Slide the blade into the push rod as far as it will
go.
7. Tighten set screw (item 38) with the hex
key.
The set screw must be fully tightened before
running the saw ordamageto the saw willoccur.
I E. GENERAL DISASSEMBLY:
l 1. Removeblade(item53) and blade support(item
54).
2. Remove handle cover (item 35).
3. Remove switch (item 20). Remove the top two
wires by inserting a 1/16 inch diameter pin
punch directly adjacent to the stator wires.
4. Removebrushcap (item 1) andbrushes (item2).
5. Remove deflectors (item 55).
6. Remove top cap (item 4) -stator (item 7) will
be attached.
7. Remove armature (item 10). Hold the armature
inonehand andtap housing(item 14) witharub-
ber hammerwith the otherhand to loosenthe ar-
,
I
mature. (Pinion gear -item 11 -on armature
has a left hand thread).
8. Removebottomplate(item32) and gasket(item
31).
9. Insert a small block of wood between the con-
necting rod (item 30) and the housing (item 14)
to stop the rotation
of the connecting rod. Re-
move lock nuts (item 9). Remove the connect-
ing rod.
10. Usinga5/16 inchhexkey, loosengearstud(item
24) -left hand thread. Be sure not to spin gear
stud nut (item 21). Remove items 22-28.
11. Removethe pushrod and stud (item46) through
the center
of the housing.
12. Clean the gear housing cavity to remove
any
contaminated lubricant.
13. Remove and replace any faulty parts and reas-
semble by reversing these steps.
NOTE (when reassembling):
a. Step 10: Use £octite 271 on gear stud nut
(item 21) before fastening gear stud (item
24).
b. Step 7: Reassemble armature (item 10) in
housing (item 14) by using a center punch
to tap the armature until its bearing is fully
seated.
PRODUCTS CORPORA1"ION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA
JARVIS®
6205005::: FAX
860-347-6978 TEL. [phone]

J
\~ ..
PRODUCTS CORPORATION
j
r--------------------------:~
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA
FAX.[phone]. TEL. [phone]
JARVIS®
•