Jarvis ERS-1 User Manual

Model ERS--1
Electric Reciprocating Saw

EQUIPMENT

SELECTION Ordering No..............

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...

JARVIS

6205013.

®

TABLE OF

CONTENTS Page.........................

• 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..........

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Model ERS--1

noticetoemployer

and safety director

page 2 of 12

Keep hands clear.

NOTICE TO EMPLOYER AND SAFETY DIRECTOR

AVOID INJURY

1. Remove and repair any tool that malfunctions. All 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 procedures outlined in this brochure.

3. Enclosed are four (4) copies of “NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PER-

SONNEL.”

copy to the maintenance foreman; and giveone copy to the sub--contract cleanup / internalcleanup fore­man. 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 employeeswear eye protectionin accordance withOSHA’seye and faceprotection require­ments (29 CFR 1910.133) at all times.

8. Hand/Wrist/Arm injury andother Cumulative Trauma Disorders mayresult from repetitive work,mo­tion or vibration. You must make your employee’s aware of hazards, symptoms of injury and appropri­ate prevention. See OSHA’s “Ergonomic Program Management Guidelines for Meatpacking Plants.”

Post one copy on the employees’ bulletin board; give one copy to the operator(s); give one

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.

®

JARVIS

6205013.

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

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notice to operators, maintenance

6

and cleanup personnel

page 3 of 12

Model ERS--1

Keep hands clear.

NOTICE TO OPERATORS, MAINTENANCE AND CLEANUP PERSONNEL

REMOVE ANY MALFUNCTIONING TOOL FROM SERVICE

REPORT ANY PROBLEMS TO YOUR SUPERVISOR

1. Disconnect the power supply i n accordance with OSHA’s lockout/tagout procedure (29 CFR 1910.147)
before making any blade changes.

2. Disconnect the power supply i n 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

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 t ool with both hands until the saw blade comes to a complete stop.

start. Release the trigger and

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

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JARVIS

6205013.

®

Model ERS--1

parts diagram and list

page 4 of 12

Figure A

Motor and Crank

Housing Assembly

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

®

JARVIS

6205013.

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

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

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parts diagram and list

6

page 5 of 12

Figure B

Frame and Guide

Assembly

Model ERS--1

ITEM PART NO. PART NAME QTY

48 1023573 Coarse Blade, 32 Teeth 1

49 1055138 Hex Head Screw 1
50 1055203 Hex Head Screw 3
51 1058192 Rear Guide 1
52 1055613 Hex Head Screw 4

1023574 Fine Blade, 64 Teeth

42V Only

Figure C

Handle

Assemblies

®

JARVIS

6205013.

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

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

PARTS FOR 42V ONLY:

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Model ERS--1

Control Box Assembly

parts diagram and list

page 6 of 12

Figure D

42V Only

ITEM PART NO. PART NAME QTY

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
1 1 1063762 Fuse, 3.15 amp 1
12 1007256 Locking Nut 2
13 101 1249 Cord Connector 2
14 1072284 Contactor 1
15 10721 17 Overload Relay 1
16 1063822 Terminal Block Base 1

®

JARVIS

6205013.

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
24 101 1248 Cord Connector 1
25 1063502 Wire Te rminal 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

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

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specifications, installation

6

and operation instructions

page 7 of 12

Model ERS--1

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 refer­enced items.

IMPORTANT: ALWAYS DISCONNECT THE ELEC­TRIC 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 ELEC­TRICAL 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 o r 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 fol­low 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.

JARVIS

End Cap

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.

2 Testthe toolprior to use or daily. Depress the trigger

and the tool should
tool should

from service and report the problem to your supervi­sor immediately. Always use both h ands when

starting andoperating thetool. 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 com­plete stop.

stop. If the tool malfunctions, remove it

start. Release the trigger and the

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

[e-mail]

JARVIS

6205013.

®

Model ERS--1

operation and

maintenance instructions

page 8 of 12

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 point­ing upward while sawing through the tail
bone.

4.4 When the tail bone hits the housing of the ERS--1,
saw untilthe tail bonebreaks apart and the ERS--1
is allowed to continue its path down theback 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 posi­tion 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 point­ing downward while sawing through the
shoulder and neck.

when starting and stopping the tool. Continue hold­ing thetool firmlywith bothhands until the saw blade
comes to a complete stop.

1.2 Apply Jarvis 1315 White Grease togrease fittings
(items 26 and 33). The fittings can be reached by
inserting a greasegun through two of the three ac­cess 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 en­tire 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).

MAINTENANCE INSTRUCTIONS

Refer to Figures A, B and C on pages 4 and 5 for refer­enced items.

IMPORTANT: ALWAYS DISCONNECT THE ELEC­TRIC POWER SUPPLY IN ACCORDANCE WITH
OSHA’S LOCKOUT/TAGOUT PROCEDURES (29
CFR 1910.147) BEFORE INSTALLING OR RE­MOVING A BLADE. ALWAYS DISCONNECT THE
ELECTRIC POWER SUPPLY IN ACCORDANCE
WITH OSHA’S LOCKOUT/TAGOUT PROCE­DURES (29 CFR 1910.147) BEFORE PERFORM­ING ANY MAINTENANCE OR REPAIRS.

1 PRIOR TO USE OR DAILY:

1.1 Make sure thecontrol triggeris working correctly.

Depress the trigger and the tool should
lease the trigger and the tool should

tool malfunctions,repairor remove itfrom service
immediately.

The electric power supply must be connected to per­form theabove operation only. Always use two hands

start. Re-

stop. If the

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 crank­case 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 pre­vent crank from rotating.

5.4 Remove threaded cap (item 25), hex head screw
item (24), washer (item23) andconnecting rodas­sembly (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).

JARVIS

6205013.

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

[e-mail]

maintenance instructions

6

page 9 of 12

Model ERS--1

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 lock­ing 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 con­necting 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 (item19)
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 re­move stator (item 7) from motor and crank hous­ing (item 11).

7.6 Remove internal retaining ring (item 18) and ball
bearing (item 17).

8.2 Remember to install wave springs (item 3 and 6).

8.3 Check direction ofmotor rotation. Referto 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 but­ton 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 ofmotor rotation. Referto 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.

8 MOTOR ASSEMBLY:

8.1 Reverse steps and procedures outlined in section

7.

®

JARVIS

6205013.

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

12 FRAME AND GUIDE ASSEMBLY:

12.1 Reverse steps and procedures outlined in section

11.

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Model ERS--1

notes

page 10 of 12

JARVIS

6205013.

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

[e-mail]

notes

6

page 11 of 12

Model ERS--1

®

JARVIS

6205013.

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

[e-mail]

Model ERS--1

page 12 of 12

PRODUCTS CORPORATION

JARVIS

JARVIS

6205013.

6205013.

®

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL

TEL. [phone] FAX. [phone] WWW.jarvisproducts.com

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457--4926
UNITED STATES OF AMERICA E--MAIL
TEL. [phone] • FAX. [phone] • WWW.jarvisproducts.com

[e-mail]

[e-mail]