Jarvis 425-16 Operation Instructions Manual

Model 425--16
Hydraulic Cutter

EQUIPMENT
SELECTION Ordering No.

Model 425--16 Cutter

Standard Handles 4025072........

Pistol Grip and “D” Handles 4025075

Hydraulic Power Unit

without heat exchanger 4027266....

with heat exchanger 4027307......

...........

Pistol Grip and “D” HandleStandard Handles

TABLE OF

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

• Safety Messages to Employer and Safety

Director 2.................................

• Safety Messages to Operators, Maintenance

and Cleanup Personnel 3...................

• Parts Diagram and List 4....................

• Installation Diagram 11.....................

• Specifications 12...........................

• Installation Instructions 12...................

• Operation Instructions 14....................

Balancer 4042045....................

JARVIS

6225030::.

®

• Maintenance Instructions 14.................

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 425--16

SAFETY MESSAGES TO EMPLOYER AND SAFETY DIRECTOR

safety messages to employer

and safety director

page 2 of 16

Keep hands clear.

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 OPERAT ORS, MAINTENANCE AND CLEANUP

PERSONNEL.”

one copy to the maintenance foreman; and give one copy to the sub-contract cleanup / internal cleanup
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 modifi cations 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. Follow our installation and maintenance instructions for proper installation and care of the tool.

8. Avoid injury. Do not permit the tool to be misused.

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

9. 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

6225030::.

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]

safety messages to operators,
maintenance and cleanup personnel

page 3 of 16

Model 425--16

Keep hands clear.

SAFETY MESSAGES TO OPERATORS, MAINTENANCE AND CLEANUP

PERSONNEL

REMOVE ANY MALFUNCTIONING TOOL FROM SERVICE

REPORT ANY PROBLEMS TO YOUR SUPERVISOR

1. Disconnect all hydraulic and air hoses and shut the power off in accordance with OSHA’s lockout/
tagout procedures (29 CFR 1910.147) before sharpening blades.

2. Disconnect all hydraulic and air hoses and shut the power off in accordance with OSHA’s lockout/
tagout procedures (29 CFR 1910.147) before performing any repair or maintenance.

3. Disconnect all hydraulic and air hoses and shut the power off - or have all hydraulic and air hoses
disconnected and the power shut off - in accordance with OSHA’s lockout/tagout procedures (29 CFR

1910.147) before performing any cleanup.

4. Disconnect all hydraulic and air hoses and shut the power off when the tool is not being used.

5. Clean up any spilled or leaked hydraulic fluid.

6. Never put fingers, hands or other parts of the body on the cutting edge, in the cutting path or in the path

of the moving links.

7. Test the tool prior to use or daily. Depress one
trigger and the blades should
triggers simultaneously and the blades should close. With the blades closed, release one trigger and
the blades should
The blades should not close. Repeat this procedure holding the other trigger. If the tool malfunctions,
remove it from service and report or repair it immediately.

8. Never depress the triggers unless you want to use or test the tool.

9. Never make modifications or alterations to the tool. Report or replace any missing or illegible labels.

open. Continue holding the depressed trigger and then depress the other trigger.

not close. Repeat this procedure reversing the triggers. Depress both

trigger, then pause one second and depress the other

JARVIS

6225030::.

®

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 425--16

parts diagram and list

page 4 of 16

Figure A G

ITEM PART NO. PART NAME QTY

1 1055755 Hex Head Screw 6
2 1004230 Lock Washer 6
3 1024106 Trigger Guard 1
4 1018130 Trigger Lever 2
5 1016350 Cartridge Housing
6 1035309 O-- ring 4
7 1039050 Trigger Plunger with item 8 2
8 1035279 O-- ring 2

with item 6 2

G Jarvis service tool 8039092 is available for locking

ring removal and installation.

ITEM PART NO. PART NAME QTY

9 1014092 Compression Spring 2

10 1051118 Male Elbow Fitting 2

11 1051083 Male Elbow Fitting 3
12 1007288 Hex Jam Nut 1
13 1004113 Washer 1
14 1019153 Rear Handle 1
15 1055874 Hex Head Screw 1
16 1055945 Hex Head Screw 4
17 1042358 Handle Bracket 1
18 1016496 Cylinder with
19 1050633 Elbow 2
20 1017083 Danger Label 1
21 1035518 O-- ring 1
22 1035519 Piston Seal, 2 parts 1
23 1065063 Piston 1
24 1013252 Locking Ring 1
25 1013256 Retaining Ring 2
26 1036232 Bushing 1
27 1035516 Rod Seal 1
28 1035517 Wiper Seal 1
29 1011087 Quick Connect Socket 1
30 1059087 Hose Assembly, 2 ft 2
31 1011086 Quick Connect Plug 1
32 1055274 Drive Screw 4
33 1017400 Name and Info Label 1
34 1010274 Threaded Pin 2
35 1010376 Dowel Pin 2

3035056 Seal Kit

items 20, 32 & 33 1

(items 21, 22, 27 & 28)

JARVIS

6225030::.

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]

parts diagram and list

page 5 of 16

Figure B

Model 425--16

* Left side tool (standard) shown above

ITEM PART NO. PART NAME QTY

36 1061700 Tubing, 8 inch 1
37 1011320 Male Connector 1
38 1019173 Stick Handle 1
39 1004231 Lock Washer 3
40 1055613 Hex Head Screw 3
41 1024191 Trigger Guard 1
42 1010415 Blade Pin 1
43 1032517 Wear Plate with item 51 2
44 1023366* Blade, Standard 2

1023460 Blade, Right Side Tool

45 1028104* Link, Standard 2

1028127 Link, Right Side Tool
46 1010416 Link Pin 2
47 1007023 Hex Lock Nut 2
48 1011319 Yoke 1

**

** Tighten to 100-- 120 lbf--in (11.3-- 13.6 N--m)

ITEM PART NO. PART NAME QTY

49 1010384 Dowel Pin 1
50 1007181** Hex Lock Nut 1
51 1016495 Clevis Housing 1
52 1035320 O--ring 1
53 1013253 Retaining Ring 1
54 1042360 Hanger 1
55 1036233 Hanger Bushing 1
56 1011175 Male Connector 1
57 1061699 Tubing, 7 inch 1

3019210 Front Handle Assembly

(includes items 1, 2, 4-- 9,
34, 35, 37, 38, 41 and 56)

3019209 Rear Handle Assembly

(includes items 1--11, 14,
34 and 35)

JARVIS

6225030::.

®

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 425--16

parts diagram and list

page 6 of 16

ITEM PART NO. PART NAME QTY

58 1051158 Tube Connector 1
59 1022099 Valve Manifold with item 60 1
60 1035173 O--ring 1
61 1035029 O--ring 1
62 1035280 O--ring 2
63 1039043 Plunger Valve with item 62 1
64 1055043 Socket Set Screw 2
65 1019104 Air Control Handle 1
66 1012033 Trigger Guard Clamp 1
67 1024035 Trigger Guard 1
68 1055134 Locking Cap Screw 2
69 1055610 Hex Head Screw 1
70 1004314 External Lock Washer 1
71 1006037 Trigger Button 1
72 1055492 Socket Set Screw 1
73 1014100 Valve Spring 1
74 1022097 Valve Body
75 1050509 Hex Plug 1
76 1051159 Tube Connector 1
77 1051124 Tube Connector 2
78 1019177 Pistol Grip Handle 1
79 1024194 Trigger Guard 1
80 1022211 Valve 1
81 1054153 Threaded Plug 1
82 1018143 Trigger 1
83 1010356 Dowel Pin 1

3019182 Front Handle Assembly

(incl. items 58 --75 and 77)

3019181 Pistol Grip Handle Assy

(incl. items 1,2, 10, 11, 34
and 76-- 83)

(w/items 61 & 75) 1

*

**

JARVIS

6225030::.

*

Figure C

Pistol Grip and Front

Handle Assembly for

Model 4025075

®

*

*

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

Quantity for 425--16 model 4025072 is two (2).

*

Quantity for 425--16 model 4025075 is one (1).

Quantity for 425--16 model 4025072 is three (3).

**

Quantity for 425--16 model 4025075 is two (2).

[e-mail]

parts diagram and list

page 7 of 16

Model 425--16

4027266

Hydraulic Power Unit

with “A” Flanged

Pump

Figure D

ITEM PART NO. PART NAME QTY

1 3016193 Elec/Pneu Control Box, 115v 1

3016212 Elec/Pneu Control Box, 220v

2 1008193 Electric Motor, 460/230v, 60Hz 1

1008197 Electric Motor, 440/400/230v,50Hz
3 1071429 Tubing Assy, Return 1
4 1071430 Tubing Assy, Filter to Subplate 1
5 1042361 Mounting Bracket 1
6 1011324 Motor Half Coupling 1
7 1011326 Spider Center Coupling 1
8 1011325 Pump Half Coupling 1
9 1071431 Tubing Assy, Pump to Filter 1

10 3034031 High Pressure Filter Assembly 1

1034105 High Pressure Filter Element

11 1008238 Hydraulic Gear Pump 1
12 1050515 Adapter Elbow 1
13 1025022 Hydraulic Pressure Gage 1
14 1034013 Oil Breather Filler Cap 1
15 1034064 Triangular Filter Assy w/Element 1

1034062 Filter Element only

1034052* Square Filter Assy w/Element

1034048* Filter Element only for Sq. Filter

JARVIS

6225030::.

®

* Not used in current units

ITEM PART NO. PART NAME QTY

16 1022042 Dir. Control Valve, 115v 1

1022175 Dir. Control Valve, 220v
1063843 din/iso Coil for 115v Valve
1063844 din/iso Coil for 220v Valve

17 1072135 din/iso Connector, 115v

1072136 din/iso Connector, 220v
18 1055376 Socket Head Cap Screw 4
19 1022120 Sub Plate w/Cart Relief Valve 1
20 1022119 Relief Valve Cartridge only
21 1050462 Hex Nipple (4 inch) 1
22 1050126 Pipe Elbow 2
23 1050090 Hex Nipple (2 inch) 1
24 1025045 Oil Level Gage 1
25 1034007 Suction Strainer Filter 1
26 1054166 Drain Plug with Magnet 1
27 1059003 Hyd. Hose Assembly, 16 ft 2
28 1011086 Quick Connect Plug 1
29 1011087 Quick Connect Socket 1

1017085 Electrical Danger Label 1

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 425--16

parts diagram and list

page 8 of 16

4027131

Hydraulic Power Unit

with “AA” Flanged

Pump

Figure E

* Not used in current units

ITEM PART NO. PART NAME QTY

1 1008193 Electric Motor 1
2 1042361 Mounting Bracket 1
3 1061734 Tubing Assembly, Return 1
4 1011324 Motor Half Coupling 1
5 1011326 Spider Center Coupling 1
6 1011325 Pump Half Coupling 1
7 3008079 Hydraulic Gear Pump 1
8 1050515 Adapter Elbow 1
9 1034064 Triangular Filter Assy 1

1034062 Filter Element only
1034052* Square Filter Assy

10 1061733 Tubing Assembly, Supply 1

11 1022042 Dir. Control Valve, 115v 1

JARVIS

6225030::.

1034048* Filter Element only

1022175 Dir. Control Valve, 220v
1063072 Coil, 115v Valve
1063373 Coil, 220v Valve
1063843 din/iso Coil for 115v Valve
1063844 din/iso Coil for 220v Valve

®

ITEM PART NO. PART NAME QTY

12 1072135 din/iso Connector, 115v

1072136 din/iso Connector, 230v
13 1055376 Socket Head Cap Screw 4
14 3016193 Elec/Pneu Control Box 1
15 1022120 Cartridge Sub Plate 1
16 1050090 Hex Nipple (2 inch) 1
17 1050462 Hex Nipple (4 inch) 1
18 1050126 Pipe Elbow 2
19 1022119 Relief Valve Cartridge 1
20 1025045 Oil Level Gage 1
21 1059003 Hyd. Hose Assembly, 16 ft 2
22 1034007 Suction Strainer Filter 1
23 1054166 Drain Plug with Magnet 1
24 1011086 Quick Connect Plug 1
25 1011087 Quick Connect Socket 1
26 1025022 Hydraulic Pressure Gage 1
27 1050508 Hex Nipple (1.5 inch) 1
28 1050669 Reducer Bushing 1
29 1050127 Pipe Tee 1
30 1050668 Male Elbow 3
31 1034013 Oil Breather Filler Cap 1

1017085 Electrical Danger Label 1

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]

parts diagram and list

page 9 of 16

Model 425--16

4027105

Hydraulic Power Unit

with Heat Exchanger

and “AA” Flanged

Pump

Figure F

* Not used in current units

ITEM PART NO. PART NAME QTY

1 1008193 Electric Motor 1
2 1042361 Mounting Bracket 1
3 1061740 Return Tubing Out 1
4 1011324 Motor Half Coupling 1
5 1011326 Spider Center Coupling 1
6 1011325 Pump Half Coupling 1
7 3008079 Hydraulic Gear Pump 1
8 1050515 Adapter Elbow 1
9 1061738 Return Tubing In 1

10 1061733 Tubing Assembly, Supply 1

11 1022042 Dir. Control Valve, 115v 1

1022175 Dir. Control Valve, 220v
1063072 Coil only for 115v Valve
1063373 Coil only for 220v Valve
1063843 din/iso Coil for 115v Valve
1063844 din/iso Coil for 220v Valve

12 1072135 din/iso Connector, 115v

1072136 din/iso Connector, 230v
13 1055376 Socket Head Cap Screws 4
14 1050677 Nipple 1
15 1050678 Hex Bushing 1
16 1034064 Triangular Filter Assy 1

1034062 Filter Element only

1034052* Square Filter Assy

1034048* Filter Element only
17 1061739 Heat Exchanger 1

ITEM PART NO. PART NAME QTY

18 1050668 Male Elbow 3
19 1050127 Pipe Tee 1
20 1050669 Reducer Bushing 1
21 1050508 Hex Nipple (1.5 inch) 1
22 1022224 Water Valve 1
23 3016193 Elec/Pneu Control Box 1
24 1022120 Cartridge Sub Plate 1
25 1050676 Hex Nipple (8 inch) 1
26 1050675 Hex Nipple (6 inch) 1
27 1050126 Pipe Elbow 2
28 1022119 Relief Valve Cartridge 1
29 1025045 Oil Level Gage 1
30 1059003 Hyd. Hose Assembly, 16 ft 2
31 1050680 Coupling 2
32 1034007 Suction Strainer Filter 1
33 1050681 Nipple 1
34 1050679 Elbow 1
35 1011086 Quick Connect Plug 1
36 1011087 Quick Connect Socket 1
37 1054166 Drain Plug 1
38 1050239 Reducer Bushing 1
39 1050671 Pipe Nipple 1
40 1025022 Hydraulic Pressure Gage 1
41 1050602 Reducer Bushing 1
42 1050670 Reducing Adapter 1
43 1044065 Flange, Suction Line 1
44 1034013 Oil Breather Filler Cap 1

1017085 Electrical Danger Label 1

JARVIS

6225030::.

®

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 425--16

parts diagram and list

page 10 of 16

Electric/Pneumatic Control Box

Figure G

* not used in current tools

ITEM PART NO. PART NAME QTY

1 1063079 Ring Tongue Terminal 2
2 1063502 Fork Tongue Terminal 13
3 1072091 Glass Fuse, 115v 1

1063862 Glass Fuse, 220v

4 1063311* Pigtail Fuse, 115v

1063312* Pigtail Fuse, 220v
5 1005059 Electric Switch 2
6 1051065 Actuator 2
7 1051124 Tube to Pipe Connector 2
8 1061255 Yellow Tubing, 20 ft 2
9 1004154 Washer 2

10 1029445 Hex Spacer 4

11 1004244 Washer 4
12 1073072 Plastic Pan Head Screw 4
13 1051063 Street Tee 2
14 1051069 Air Bleed Fitting 2
15 1034014 Air Filter 1
16 1051001 Quick Connect Plug 1
17 1061354 Grey Tubing, 20 ft 1
18 1050027 Street Elbow 1
19 1050016 Hex Nipple 1

JARVIS

6225030::.

®

ITEM PART NO. PART NAME QTY

20 1050057 Female Elbow 1
21 1051159 Tube to Pipe Connector 1
22 1055197 Socket Head Cap Screw 2
23 1004206 Washer 2
24 1007355 Hex Lock Nut 2
25 1055946 Socket Head Cap Screw 4
26 1072071 ATD Circuit Board, 115v 1

1072072 ATD Circuit Board, 220v
27 1016347 Electrical Enclosure 1
28 1055010 Pan Head Screw 4
29 1032266 Panel 1
30 1007278 Locking nut 3
31 1004211 Sealing Washer 3
32 1011240 Strain Relief Connector 3
33 1001295 Electric Cord, 4 Ft 2
34 1017114 Wiring Diagram, 115v 1

1017153 Wiring Diagram, 230v 1
35 1017012 Electrical Warning Label, 115v 1

1017150 Electrical Warning Label, 220v

3016193 Control Box Complete, 115v

3016212 Control Box Complete, 230v

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]

installation diagram

page 11 of 16

Air Supply

inlet

Model 425--16

Figure H

Electric/Pneumatic Control Box

Hose Assembly

To Directional

Control Valves

To AC Power

Supply

Yellow Hose

Grey Hose

Yellow Hose

Electric Control Box

(Factory installed on

Hydraulic Power Unit)

Pressure Hose

Hydraulic

Return Hose

Hydraulic

Hydraulic

Pressure Hose

Connection

Hydraulic

Power Unit

Hydraulic

Return Hose

Connection

JARVIS

6225030::.

®

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 425--16

specifications and

installation instructions

page 12 of 16

SPECIFICATIONS

Model 425--16

Blade Opening 3.7 in 94 mm

Control Handles
Air / Dual Anti--tie Down 50 psi 3.4 bar

Cutting Force 1300 lbf 5.78 kN

Cutting Cycle 1 sec

Overall Length (4025072) 25 in 635 mm

(4025075) 18 in 460 mm

Weight 20 lb 9 kg

Hydraulic Power Unit

Voltage

other voltages and frequencies available

Power

Hose Length 16 ft 5 m

Oil Capacity 20 gal 76 L

Oil Viscosity at 100° F/40° C 200 SUS 46 ISO

Dimensions with heat exchanger (l x w x h)

34x24x28in 864x610x711mm

Dimensions without heat exchanger (l x w x h)

31.5 x 25.4 x 30 in 800 x 645 x 711 mm

Weight (without oil) 250 lb 113 kg

460/230 V - 60 Hz -- 3 ph

5 hp 3700 Watts

INSTALLATION INSTRUCTIONS

Refer to Figure G on page 10 for referenced items unless
otherwise noted. Use Figure H on page 11 and Figure
1 on page 13 as a guide for hose connections and wiring
of the electric/pneumatic control box.

IMPORTANT: ALWAYS DISCONNECT ALL
HYDRAULIC AND AIR HOSES AND SHUT THE
POWER OFF IN ACCORDANCE WITH OSHA’S
LOCKOUT/TAGOUT PROCEDURES (29 CFR 1910.147)
BEFORE PERFORMING ANY MAINTENANCE OR
REPAIRS.

1 Install the 425--16 above the work station from a

balancer. Jarvis part number 4042045 is available.

1.1 The 425--16 should have sufficient travel to allow
the operator to reach the entire work area.

2 Install the hydraulic power unit above the operator’s

station.

3 Fill the power unit oil reservoir with a USDA H1

approved premium grade hydraulic fluid (viscosity:

200 S.U.S. at 100°

power unit without oil.

4 Make all the necessary air connections.

4.1 The air inlet pipe should be
minimum.

4.2 The required compressed air supply is 40 psi
minimum to 50 psi maximum.

4.3 An airregulator must be installed in t he line to t he
quick connect plug (item 16) before the inlet to the
filter (item 15).

5 Make all necessary hose connections.

5.1 Attach one end of both yellow hose, Figure H,
page 11) to the tube fittings (item 11, Figures A or
C, as applicable, on pages 4 and 6) on the 425--16
cutter.

5.2 Attach the free ends of the yellow hoses to the
fittings (item 11) on the electric/pneumatic
control box.

5.3 Attach one end of the grey hose (Figure H, page

11) to the fitting (item 10, Figures A or C, as
applicable, on pages 4 and 6) on the 425--16
cutter.

5.4 Attach the free end of the grey hose to the
connector assembly (item 21) on the
electric/pneumatic control box filter.

6 Make all the necessary wiring connections. All wiring

must be done in accordance with national, state and
local electrical codes.

6.1 Adjust cutter opening cycle. Refer to Figure 1,
page 13.

6.1.1 Close the cutter blades. Refer t o operating

instruction 4.1.

6.1.2 Release the trigger(s).

6.1.3 Set the timer on the ATD board so that the
valve on the hydraulic power unit is
de-energized when the blades have fully
opened. Older boards use a square
potentiometer with a screw driver slot.
Newer boards use a group of four rocker
switches.

6.2 Make sure the compressed air supply is at the
proper pressure (40--50 psi).

6.3 Make s ure the 425--16 cutter moves freely on the
balancer.

F/ 46 ISO at 40° C). Never run the

3

/8inch diameter

JARVIS

6225030::.

®

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]

installation instructions

page 13 of 16

ATD Board LED Code

L1 = Switch Input on (terminal 10)
L2 = Switch Input on (terminal 8)
L3 = Timed Output on (terminal 6)
L4 = ATD circuit 2 on
L5 = ATD circuit 1 on
L6 = Power on terminals 2 and 3

Electric/Pneumatic Control Box

Model 425--16

Figure 1

Control Box Wiring Diagram

Directional

Control

Valve

JARVIS

6225030::.

®

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 425--16

operation and

maintenance instructions

page 14 of 16

OPERATION INSTRUCTIONS

1 Connect all hydraulic hoses.

2 Connect all air hoses.

3 Turn on the power.

4 Each day, before you begin operation, perform the

following:

4.1 Make sure that the dual anti-tie down control
handles (the front and the rear handles) are
working correctly. Depress one trigger, then
pause one second and depress the other trigger and
the blades should
procedure reversing the triggers. Depress both
triggers simultaneously (within one half second
of each other) and the blades should
the blades closed, release one trigger and the
blades should
depressed trigger and then depress the other
trigger. The blades should
procedure holding the other trigger. If the tool

malfunctions, remove it from service and report
the problem to your supervisor immediately.

4.2 Make sure that the compressed air supply is at the
proper pressure (40--50 psi).

4.3 Make sure that 425--16 moves freely on the
balancer.

5 Making the cut.

5.1 Place 425--16 cutter around the hock of the
carcass.

5.2 Depress both t riggers simultaneously to close the
blades.

5.3 Release either or both triggers to open the blades.

not close. Repeat this

close. With

open. Continue holding the

not close. Repeat this

BEFORE PERFORMING ANY MAINTENANCE OR
REPAIRS.

IMPORTANT: IF YOU ARE PERFORMING
MAINTENANCE ON THE HYDRAULIC SYSTEM,
DISSIPATE OR RESTRAIN THE STORED ENERGY.

1 DAILY MAINTENANCE:

Each day, before you begin operation, perform the
following:

1.1 Check oil level of hydraulic power unit and fill
if necessary.

1.1.1 Change hydraulic fluid and filter as
necessary. Fill the oil reservoir with a
USDA approved premium grade hydraulic
fluid (viscosity: 200 S.U.S at 100° F/46
ISO at 40° C). Burnt smelling or foamy

fluid should be replaced immediately.

1.2 The 425--16 is equipped with dual anti-tie down
control handles (the front and the rear handles).
Check for the correct operation of the dual anti-tie
down control handles before each shift every day.
Depress one trigger, then pause one second and
depress the other trigger and the blades should
close. Repeat this procedure reversing the
triggers. Depress both
(within one half second of each other) and the
blades should

release one trigger and the blades should
Continue holding the depressed trigger and then

depress the other trigger. The blades should
close. Repeat this procedure holding the other
trigger. If the tool malfunctions, repair or remove

it from service immediately

close. With the blades closed,

triggers simultaneously

not

open.

not

MAINTENANCE INSTRUCTIONS

Refer to Figures A--C on pages 4--6 for referenced items.

IMPORTANT:ALWAYSDISCONNECTALLHYDRAULIC
AND AIR HOSES AND SHUT THE POWER OFF IN
ACCORDANCE WITH OSHA’S LOCKOUT/TAGOUT
PROCEDURES (29 CFR 1910.147) WHEN INSTALLING
OR REMOVING A BLADE. ALWAYS DISCONNECTALL
HYDRAULIC AND AIRHOSES AND SHUT THEPOWER
OFF IN ACCORDANCE WITH OSHA’S
LOCKOUT/TAGOUT PROCEDURES (29 CFR 1910.147)

JARVIS

6225030::.

®

Note: Connect the air hoses and hydraulic
hoses and turn on the power to perform the
above maintenance check only.

1.3 Inspect all hoses for abrasion and replace if
necessary.

1.4 Check all fittings for leaks and tighten or replace
as necessary .

1.5 Apply Jarvis 1315 White Grease to the top holes
in blade and link pins (items 42 and 46).

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

page 15 of 16

Model 425--16

1.6 Inspect blades (item 44) for wear and sharpen or
replace as necessary. Refer to Sections 3 and 4

as a procedural guide.

1.7 Check that the blades are opening and closing
smoothly and that they are meshing properly. If
the blades do not have a smooth sliding contact
during cutting, the main pivot blade pin (item

42) and hex lock nut (item 50) must be adjusted.
Tightenuntil smooth operation is lost, then back
off slightly. Do not

2 WHEN NECESSARY:

2.1 Disassemble, clean and inspect link assembly.

Refer to section 5 as a procedural guide.

2.2 Disassemble, clean and inspect cylinder
assembly. Refer to section 7 as a procedural

guide.

3 BLADE DISASSEMBLY:

3.1 Remove hex lock nut (item 50) and blade pin
(item 42).

3.2 Remove hex lock nuts (item 47) and link pins
(item 46).

3.3 Remove wear plates (item 43).

3.4 Remove blades (item 44).

3.5 Inspect all parts for wear and replace if
necessary.

3.5.1 Inspect blades for wear and sharpen or
replace as necessary. Refer to Figure 2

below, for proper sharpening angle of
blade.

over--tighten.

4 BLADE ASSEMBLY:

4.1 Reverse steps and procedures outlined in
section 3.

4.2 Apply light coat of Jarvis 1315 White Grease to
sliding surface of each blade (item 44) prior to
insertion into clevis housing (item 51).

4.3 Make sure curved end of wear plates (item 43)
are facing away from blades.

4.4 Tighten hex lock nut (item 50) from 100--120
lbf--in(11.3--13.6N--m). Refer to section 1, step

1.7 if further blade adjustment is necessary.

4.5 Apply Jarvis 1315 White Grease to the top holes
in blade and link pins (items 42 and 46).

5 LINK DISASSEMBLY:

5.1 Remove blades (item 44). Refer to section 3 as

a procedural guide.

5.2 Disconnect tubing (items 36 and 57) from
fittings (items 10 and 11). Note: This step
applies to 425--16 model 4025072 only. Tubing
does not need to be disconnected for 425--16
model 4025075 with pistol grip handle.

5.3 Unscrew and separate cylinder (item 18) from
clevis housing (item 51) by loosening locking
ring (item 24). Jarvis wrench, part number
8039092 is available.

5.4 Remove screws (item 40) and slide off handle
assembly from clevis housing.

Figure 2

Blade Sharpening

Angle

JARVIS

6225030::.

Sharpen Here

®

5.4.1 For 425--16 model 4025075, slide pistol
grip handle and front handle assembly from
clevis housing as one unit. Loosen hex head
screw (item 69) if necessary.

5.5 Remove hanger (item 54) and hanger bushing
(item 55).

5.6 Extend the piston (item 23) so that the dowel pin
(item 49) in the yoke (item 48) lines up with the
holes in the clevis housing (item 51).

5.7 Remove the dowel pin (item 49) using a pin
punch.

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 425--16

maintenance instructions

page 16 of 16

5.7.1 The dowel pin must be pushed out from the
smaller hole in t he clevis housing through
the larger hole in the clevis housing.

5.8 Remove both links (item 45).

5.9 Clean and inspect all parts for wear and replace
as necessary .

6 LINK ASSEMBLY:

6.1 Reverse steps and procedures outlined in
section 5. See notes below.

6.1.1 Apply Jarvis 1315 White Grease to dowel
pin (item 49) and sliding surfaces of links
(item 45) before inserting into clevis
housing (item 51).

6.1.2 Use a pin punch through the small hole in
the clevis housing (item 51) to align the
yoke (item 48) and links (item 45) as you
press dowel pin (item 49) in place. The

dowel pin should end up approximately
flush with top of yoke.

6.1.3 Lock clevis housing (item 51) and cylinder
(item 18) in place with locking ring (item

24). Tighten with Jarvis wrench, part
number 8039092.

6.1.4 Follow steps and procedures outlined in
section 4 for blade assembly.

detach handle bracket (item 17) from
cylinder body (item 18).

7.4 Remove piston rod (item 23) from yoke (item

48).

7.5 Remove piston seals (item 22) off piston rod
(item 23). Use a screw driver to pry off seals if
necessary.

7.6 Remove retaining rings (item 25) inside clevis
housing (item 51) and push out bushing (item

26) from front end of clevis housing (item 51).

7.7 Remove seals (items 27 and 28) from bushing
(item 26).

7.8 Remove o--ring (item 21) from cylinder (item

18).

7.9 Clean and inspect all parts for wear and replace
as necessary .

8 CYLINDER ASSEMBLY:

8.1 Reverse steps and procedures outlined in
section 7. See notes below.

8.1.1 Install seal and backup ring (item 22) as
shown in Figure 3, below.

Figure 3

Seal Installation

Backup Ring

Piston Seal
with O--ring

Rod Side
of Piston

7 CYLINDER DISASSEMBLY:

7.1 Remove blades (item 44). Refer to section 3 as

a procedural guide.

7.2 Remove links (item 45). Refer to section 5 as a

procedural guide.

7.3 For 425--16 model 4025072, remove rear handle
assembly.

7.3.1 Remove hex head screw (item 15) to
separate from rear handle bracket (item 17).

7.3.2 Remove hex head screws (item 16) to

JARVIS

6225030::.

®

8.1.2 Screw cylinder assembly onto clevis
housing (item 51) as far as possible, then
back off slightly to obtain desired alignment
of hydraulic fittings (items 19) relative to
cutting plane of blades (item 44).

8.1.3 Lock cylinder assembly in place with
locking ring (item 24). Tighten with Jarvis
wrench, part number 8039092.

8.1.4 Use Loctite 262 or 271 on threads of piston
(item 23) prior to installing yoke (item 48).

8.1.5 Follow steps and procedures outlined in
sections 4 and 5 for blade and link assembly.

PRODUCTS CORPORATION

33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926

UNITED STATES OF AMERICA E--MAIL.

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

[e-mail]