Jarvis ERS-1 User manual

JARVIS
TABLE OF
CONTENTS Page.........................
Models ERS--1
42 V, 3 phase, 50 Hz 4005106........
380/220 V, 3 phase, 60 Hz 4005108...
400/230 V, 3 phase, 50 Hz 4005107...
460/230 V, 3 phase, 60 Hz 4005109...
Blades
Coarse (32 Teeth) 1023573..........
Fine (64 Teeth) 1023574.............
Balancer (for all models) 4042051...
•Notice to Employer and Safety
Director 2.........................
•Notice to Operators, Maintenance
and Cleanup Personnel 3............
•Parts Diagram and List 4............
•Specifications 7....................
•Installation Instructions 7............
•Operation Instructions 7.............
•Maintenance Instructions 8..........
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
Model ERS--1
Electric Reciprocating Saw
EQUIPMENT
SELECTION Ordering No..............
®

noticetoemployer
and safety director
Model ERS--1 page 2 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
NOTICE TO EMPLOYER AND SAFETY DIRECTOR
AVOID INJURY
1. Remove and repair any tool that malfunctions. All personnel must be instructed to remove any mal-
functioning 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 procedures outlined in this brochure.
3. Enclosed are four (4) copies of “NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PER-
SONNEL.” Post one copy on the employees’ bulletin board; give one copy to the operator(s); give one
copy to the maintenance foreman; and give one copy to the sub--contract cleanup / internal cleanup fore-
man. Additional copies will be provided upon request.
4. The tool is designed and intended to be powerful. This 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. Ensure that proper procedures are established in accordance with OSHA’s lockout/tagout procedures
(29 CFR 1910.147) to prevent accidental startup or release of stored energy.
7. Ensure that employees wear eye protection in accordance with OSHA’s eye and face protection require-
ments (29 CFR 1910.133) at all times.
8. Hand/Wrist/Arm injury and other Cumulative Trauma Disorders may result from repetitive work, mo-
tion or vibration. You must make your employee’s aware of hazards, symptoms of injury and appropri-
ate prevention. See OSHA’s “Ergonomic Program Management Guidelines for Meatpacking Plants.”
9. Follow our installation and maintenance instructions for proper installation and care of the tool.
10. Avoid injury. Do not permit the tool to be misused.
11. If you resell or distribute a Jarvis product, you must provide the purchaser with the appropriate safety
sheets and tool brochure. Additional copies of safety sheets and tool brochures will be provided upon
request.
Keep hands clear.

notice to operators, maintenance
and cleanup personnel
Model ERS--1
page 3 of 12
6
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PERSONNEL
REMOVE ANY MALFUNCTIONING TOOL FROM SERVICE
REPORT ANY PROBLEMS TO YOUR SUPERVISOR
1. Disconnect the power supply in accordance with OSHA’s lockout/tagout procedure (29 CFR 1910.147)
before making any blade changes.
2. Disconnect the power supply in accordance with OSHA’s lockout/tagout procedure (29 CFR 1910.147)
before performing any repair or maintenance.
3. Disconnect the power supply -- or have the power shut off -- in accordance with OSHA’s lockout/tagout
procedure (29 CFR 1910.147) before performing any cleanup.
4. Disconnect the power supply when the tool is not in use.
5. Never put fingers, hands or other parts of the body on the blade or within the cutting path of the tool
when it is connected to the power supply.
6. Always wear eye protection in accordance with OSHA’s eye and face protection requirements (29 CFR
1910.133).
7. Always wear cut protective gloves when handling the blade.
8. Test the tool prior to use or daily. Depress the trigger and the tool should start. Release the trigger and
the tool should stop. If the tool malfunctions, remove it from service and report or repair it immediately.
9. Never depress the trigger unless you want to use or test the tool.
10. Never make modifications or alterations to the tool. Report or replace any missing or illegible labels.
11. Always use both hands when starting and operating the tool to avoid the risk of possible “kick back”
or “recoil”. Continue holding the tool with both hands until the saw blade comes to a complete stop.
Keep hands clear.

parts diagram and list
Model ERS--1 page 4 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
1 1055610 Cheese Head Screw 3
2 1002523 End Cap 1
3 1014109 Wave Spring 1
4 1021464 Ball Bearing 1
5 1064054 Rotor 1
6 1014195 Wave Spring 1
7 1072003 Stator, 42 V 1
1072005 Stator, 380/220 V, 60Hz 1
1072006 Stator, 400/230 V, 50 Hz 1
1072008 Stator, 460/230 V, 60 Hz 1
8 1032693 Insulating Plate 1
9 page 5 Rear Handle 1
10 1073039 Socket Set Screw, Cup Pt. 2
11 1016659 Motor and Crank Housing 1
12 1017081 Danger Label 1
13 1032692 Insulating Plate 1
14 1042557 Bracket 1
15 1055802 Hex Head Screw 2
16 1055203 Hex Head Screw 3
17 1021476 Ball Bearing 1
18 1013298 Internal Retaining Ring 1
19 1043025 Crank 1
20 1071064 Weight 1
21 1028137 Connecting Rod 1
22 1021475 Ball Bearing 1
ITEM PART NO. PART NAME QTYITEM PART NO. PART NAME QTY
23 1004427 Washer 1
24 1055047 Hex Head Screw 1
25 1002522 Threaded Cap 1
26 1038022 Grease Fitting 1
27 1002521 Crankcase Cover 1
28 1073038 Flat Head Slotted Screw 7
29 1032648 Door 1
30 1007391 Wing Nut 1
31 1055604 Hex Head Screw 3
32 1007274 Hex Nut 2
33 1038011 Grease Fitting 1
34 1004419 Washer 1
35 1036331 Bushing 1
36 1007411 Hex Jam Nut 1
37 1055316 Cheese Head Screw 8
38 1058189 Guide 2
39 1065079 Ram 1
40 page 5 Guard and Guide Frame 1
41 1019245 Front Handle 1
42 1004455 Insulating Washer 1
43 1029444 Spacer 1
44 1042586 Hanger 1
45 1036342 Hanger Bushing 1
46 1004337 Washer 1
47 1055994 Hex Head Screw 1
Figure A
Motor and Crank
Housing Assembly

parts diagram and list
Model ERS--1
page 5 of 12
6
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
Figure B
Frame and Guide
Assembly
48 1023573 Coarse Blade, 32 Teeth 1
1023574 Fine Blade, 64 Teeth
49 1055138 Hex Head Screw 1
50 1055203 Hex Head Screw 3
51 1058192 Rear Guide 1
52 1055613 Hex Head Screw 4
ITEM PART NO. PART NAME QTY
53 1055945 Hex Head Screw 4
54 1024280 Guard 1
55 1058191 Center Guide 1
56 1007302 Hex Lock Nut 4
57 1046079 Frame 1
58 1032647 Side Wear Plate 1
59 1058190 Front Guide 1
60 1024279 Guard 1
61 1055752 Hex Head Screw 4
62 1001157 Electric Cord 1
63 1011328 Cord Connector 1
64 1055108 Cheese Head Screw 4
65 1017085 Danger Label, Shock 1
66 1035614 Gasket 1
67 1055915 Cheese Head Screw 7
68 1032529 Switch Mounting Plate 1
69 1018153 Trigger Lever 1
70 1010456 Dowel Pin 1
71 1004394 Sealing Washer 2
72 1061954 Hole Plug 1
73 1019220 Rear Handle 1
74 1036184 Trigger Bushing 1
75 1010457 Dowel Pin 1
76 1005143 Push Button Switch 1
77 1002465 Cover 1
PARTS FOR 42V ONLY:
78 1001111 Power Cord to Transformer 20 ft
79 1002605 Cover 1
80 1004407 Sealing Washer 1
81 1011279 Cord Connector 1
82 1001045 Signal Cord to Control Box 20 ft
83 1063209 Electric Plug 1
84 1063623 Rubber Grommet for item 83 1
ITEM PART NO. PART NAME QTY
42V Only
Figure C
Handle
Assemblies

parts diagram and list
Model ERS--1 page 6 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
1 1063554 Terminal Rail 1
2 1016796 Electrical Enclosure 1
3 1063496 Green/Yellow Terminal Block 2
4 1063495 Blue Terminal Block 1
5 1055803 Pan Head Screw 3
6 1004247 External Tooth Lock Washer 3
7 1063494 Grey Terminal Block 5
8 1063363 Terminal Marker 12
9 1063825 Terminal Marker 1
10 1063390 Fuse Terminal Block 1
11 1063762 Fuse, 3.15 amp 1
12 1007256 Locking Nut 2
13 1011249 Cord Connector 2
14 1072284 Contactor 1
15 1072117 Overload Relay 1
16 1063822 Terminal Block Base 1
ITEM PART NO. PART NAME QTY
17 1063823 Terminal Block Plug 1
18 1063815 Transient Suppressor 1
19 1072283 Transformer 1
20 1055974 Pan Head Screw 4
21 1004230 Lock Washer 4
22 1004361 Washer 4
23 1007249 Locking Nut 1
24 1011248 Cord Connector 1
25 1063502 Wire Terminal Fork 4
26 1032807 Mounting Plate 1
27 1001045 Cord 3 ft
28 1063208 Outlet 1
29 1063623 Black Grommet 1
30 1017085 Danger Label 1
31 1017459 Connection Diagram 1
3063454 Control Box Assembly
ITEM PART NO. PART NAME QTY
Figure D
Control Box Assembly
42V Only

specifications, installation
and operation instructions
Model ERS--1
page 7 of 12
6
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
SPECIFICATIONS
Model ERS--1
Motor Power 3 hp 2237 W
Operating Voltage 460/380/230/220 V, 3 ph, 60 Hz
400/230/42 V, 3 ph, 50 Hz
Capacity 50 per hour
Control Handle Single Trigger / Dual Handle
Blade Length between guides 23 in 584 mm
Blade Length 31.5 in 800 mm
Overall Length 54 in 1372 mm
Weight 135.5 lb 61.5 kg
INSTALLATION INSTRUCTIONS
Refer to Figures A, B and C on pages 4 and 5 for refer-
enced items.
IMPORTANT: ALWAYS DISCONNECT THE ELEC-
TRIC POWER SUPPLY IN ACCORDANCE WITH
OSHA’S LOCKOUT/TAGOUT PROCEDURES (29
CFR 1910.147) BEFORE PERFORMING ANY
MAINTENANCE OR REPAIRS.
ALL WIRING MUST BE DONE IN ACCORDANCE
WITH NATIONAL, STATE AND LOCAL ELEC-
TRICAL CODES.
1 Install the Model ERS--1 saw above the work station
from a balancer. Jarvis part number 4042051 is
available.
1.1 The ERS--1 should have sufficient travel to allow
the operator to reach the entire work area.
2 Position power cord for either top exit or rear exit as
desired.
2.1 Unplug the tool.
2.2 Remove (4) cheese head screws (item 64), cover
(item 77 or 79) and gasket (item 66).
2.3 Disconnect power cord (item 62 or 78) from
switch (item 76).
2.4 Remove cord connector (item 63) and hole plug
(item 72).
2.5 Swap positions of cord connector and plug.
2.6 Reconnect power cord (item 62 or 78) to switch
(item 76).
2.7 Check motor rotation. Motor rotation must fol-
low direction of arrow shown in Figure 1.
Crank (item 19) will unscrew if motor direction is wrong.
Figure 1
Motor rotation must
follow direction of
arrow.
End Cap
JARVIS
2.8 Reinstall gasket (item 66), cover (item 77 or 79)
and four (4) cheese head screws (items 64).
3 Connect the tool to the appropriately fused electric
outlet.
OPERATION INSTRUCTIONS
1 Turn on the power.
2Test the tool prior to use or daily. Depress the trigger
and the tool should start. Release the trigger and the
tool should stop. If the tool malfunctions, remove it
from service and report the problem to your supervi-
sor immediately.Always use both hands when
starting and operating the tool. Continue holding
the tool firmly with both hands until the saw
blade comes to a complete stop.
3 Make sure that the ERS--1 moves freely on its
balancer.
4 Making the cut.
4.1 Mark the center of the backbone of the carcass
with a knife. (This step is only necessary during
the operators’ learning period).
4.2 Depress the trigger to start the ERS--1. Always
use both hands when starting and operating
the tool. Continue holding the tool firmly with
both hands until the saw blade comes to a com-
plete stop.

operation and
maintenance instructions
Model ERS--1 page 8 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
4.3 Saw through the tail bone (use the knife mark as
a guide).
4.3.1 The front end of the ERS--1 should be point-
ing upward while sawing through the tail
bone.
4.4 When the tail bone hits the housing of the ERS--1,
saw until the tail bone breaks apart and the ERS--1
is allowed to continue its path down the back bone
of the carcass.
4.4.1 The motor end of the ERS--1 can be lower
than the front end or in a horizontal position
while sawing through the back bone.
4.5 After the tail and aitch bones have been split, saw
through the loin area.
4.5.1 The ERS--1 should be in a horizontal posi-
tion during this cut.
4.6 Saw through the shoulder and neck of the carcass.
4.6.1 The front end of the ERS--1 should be point-
ing downward while sawing through the
shoulder and neck.
MAINTENANCE INSTRUCTIONS
Refer to Figures A, B and C on pages 4 and 5 for refer-
enced items.
IMPORTANT: ALWAYS DISCONNECT THE ELEC-
TRIC POWER SUPPLY IN ACCORDANCE WITH
OSHA’S LOCKOUT/TAGOUT PROCEDURES (29
CFR 1910.147) BEFORE INSTALLING OR RE-
MOVING A BLADE. ALWAYS DISCONNECT THE
ELECTRIC POWER SUPPLY IN ACCORDANCE
WITH OSHA’S LOCKOUT/TAGOUT PROCE-
DURES (29 CFR 1910.147) BEFORE PERFORM-
ING ANY MAINTENANCE OR REPAIRS.
1 PRIOR TO USE OR DAILY:
1.1 Make sure the control trigger is working correctly.
Depress the trigger and the tool should start. Re-
lease the trigger and the tool should stop. If the
tool malfunctions, repair or remove it from service
immediately.
The electric power supply must be connected to per-
form the above operation only. Always use two hands
when starting and stopping the tool. Continue hold-
ing the tool firmly with both hands until the saw blade
comes to a complete stop.
1.2 Apply Jarvis 1315 White Grease to grease fittings
(items 26 and 33). The fittings can be reached by
inserting a grease gun through two of the three ac-
cess holes in crankcase cover (item 27) when the
blade is in either the extreme forward or back
position.
1.3 Check all electrical plugs and cords (over their en-
tire lengths) for cuts and abrasions. Replace if
necessary.
2 MONTHLY:
2.1 Inspect for wear on blade guides (items 38, 51, 55
and 59), ram (item 39) and side wear plate (item
58). Replace if necessary.
2.2 Tighten all fasteners.
3 BLADE REMOVAL:
Wear cut protective gloves when changing blade.
3.1 Loosen wing nut (item 30) and raise door (item
29) to remove hex head screw (item 49).
3.2 Slide blade out through front guide (item 59).
3.3 Inspect for wear. Sharpen or replace as necessary.
4 BLADE INSTALLATION:
4.1 Reverse steps and procedures outlined in section
3.
5 CRANK DISASSEMBLY:
5.1 Remove (7) flat head screws (item 28) and crank-
case cover (item 27).
5.2 Remove blade (item 48). Refer to steps and pro-
cedures outlined in section 3.
5.3 Wedge a hard wood block between crank (item
19) and motor and crank housing (item 11) to pre-
vent crank from rotating.
5.4 Remove threaded cap (item 25), hex head screw
item (24), washer (item 23) and connecting rod as-
sembly (items 21, 22 and 33--35).
5.5 Remove (3) cheese head screws (item 1) and end
cap (item 2) to access hex socket in end of rotor
(item 5).

maintenance instructions
Model ERS--1
page 9 of 12
6
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
5.6 Remove hex jam nut (item 36) and un--thread
crank (item 19) from rotor (item 5) while holding
rotor from turning with a 12 mm hex wrench.
Note: Hex jam nut (item 36) is secured by a thread lock-
ing compound. Heat maybe required for removal.
5.7 Inspect all parts for wear and replace if necessary.
6 CRANK ASSEMBLY:
6.1 Reverse steps and procedures outlined in section
5.
6.1.1 After completing assembly, make sure con-
necting rod (item 21) and ram (item 39)
move freely without any obstructions.
6.1.2 If removed or replaced, bushing (item 35)
and ball bearing (item 22) must be carefully
pressed into connecting rod (item 21).
6.1.3 If removed or replaced, grease fitting (item
26) must be carefully pressed into threaded
cap (item 25).
6.1.4 Apply either Loctite 271 or Loctite 262
thread locking compound to crank (item 19)
and hex jam nut (item 36).
7 MOTOR DISASSEMBLY:
7.1 Disassemble crank as described in section 5.
7.2 Remove stator leads in rear handle as outlined in
section 9, steps 9.1--9.2.
7.3 Remove (3) cheese head screws (item 1) and end
cap (item 2). Be careful to remove wave springs
(item 3 and 6).
7.4 Remove rotor (item 5).
7.5 Loosen (2) socket set screws (item 10) and re-
move stator (item 7) from motor and crank hous-
ing (item 11).
7.6 Remove internal retaining ring (item 18) and ball
bearing (item 17).
8 MOTOR ASSEMBLY:
8.1 Reverse steps and procedures outlined in section
7.
8.2 Remember to install wave springs (item 3 and 6).
8.3 Check direction of motor rotation. Refer to Instal-
lation Instructions, Figure 1 on page 7.
9 REAR HANDLE DISASSEMBLY:
9.1 Remove (4) cheese head screws (item 64), cover
(item 77 or 79) and gasket (item 66).
9.2 Disconnect stator and power leads from push but-
ton switch (item 76).
9.3 Remove (4) cheese head screws (item 67) and
push button switch (item 76).
9.4 Remove dowel pin (item 70) and trigger lever
(item 69).
9.5 Remove trigger bushing (item 74) and dowel pin
(item 75).
9.6 Inspect all parts for wear and replace if necessary.
10 REAR HANDLE ASSEMBLY:
10.1 Reverse steps and procedures outlined in section
9.
10.2 Check direction of motor rotation. Refer to Instal-
lation Instructions, Figure 1 on page 7.
11 FRAME AND GUIDE DISASSEMBLY:
11.1 Remove blade as outlined in section 3.
11.2 Remove (3) hex head screws (item 50) and (2) hex
head screws (item (53) securing guard (item 54)
to motor and crank housing (item 11).
11.3 Place frame and guide assembly on a bench.
11.4 Remove (2) hex head screws (item 52) and rear
guide (item 51).
11.5 Remove (2) hex head screws (item 53) and center
guide (item 55).
11.6 Remove (4) hex head screws (item 61), guard
(item 60), front guide (item 59) and side wear
plate (item 58).
11.7 Inspect all parts for wear and replace if necessary.
12 FRAME AND GUIDE ASSEMBLY:
12.1 Reverse steps and procedures outlined in section
11.

notes
Model ERS--1 page 10 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®

notes
Model ERS--1
page 11 of 12
6
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®

Model ERS--1 page 12 of 12
JARVIS PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] FAX. [phone] WWW.jarvisproducts.com
6205013.
®
PRODUCTS CORPORATION
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457--4926
UNITED STATES OF AMERICA E--MAIL [email protected]
TEL. [phone] •FAX. [phone] •WWW.jarvisproducts.com
®
JARVIS
6205013.