Greenlee 764 Guida

OPERATION, SERVICE AND PARTS

INSTRUCTION MANUAL

764

RATCHET CABLE CUTTER

Read and understand this material before

operating or servicing this equipment. Failure

to understand how to safely operate this tool

could result in an accident causing serious

injury or death. This device should only be

operated by qualified personnel.

Greenlee Textron Inc. / Subsidiary of Textron Inc. 24455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Important Safety Instructions .............................................................................3-4

Specifications ........................................................................................................5

Identification ................................................................................................5

Capacity ......................................................................................................5

Operation ..............................................................................................................6

Maintenance.....................................................................................................7-11

General........................................................................................................7

Cleaning the cutter ......................................................................................7

Lubricating the cutter...................................................................................7

Disassembly ................................................................................................8

Assembly................................................................................................9-11

Exploded View ....................................................................................................12

Parts List .............................................................................................................13

Table of Contents

Description

Purpose of this Manual

This instruction manual is intended to familiarize operating and maintenance

personnel with the safe operation and maintenance procedures associated with

the Greenlee 764 Cable Cutter.

The 764 Cable Cutter is intended to cut up to 750 MCM standard copper or

795 MCM standard aluminum electrical cable only.

Greenlee Textron Inc. / Subsidiary of Textron Inc. 34455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Safety is a critical factor in the design of Greenlee equipment. The best program starts with a safety-conscious

operator. The information highlighted in this bulletin describes operating practices for the benefit of the workers

who will use our equipment in their daily jobs. Comments from users are appreciated.

The symbol above is used to call your attention

to instructions concerning your personal safety.

Watch for this symbol. It points out important safety

precautions. It means “ATTENTION! Become alert!

Your personal safety is involved!” Read the

message that follows and be alert to the possibility

of personal injury or death.

Hazards or unsafe practices which, if not avoided, COULD

result in minor personal injury or property damage.

Hazards or unsafe practices which, if not avoided, COULD

result in severe personal injury or death.

Immediate hazards which, if not avoided, WILL result in

severe personal injury or death.

SAFETY

ALERT

SYMBOL

A person who has not read and does not understand all

operating instructions is not qualified to operate this tool.

Failure to read and understand safety instructions may

result in injury or death.

SAVETHESE INSTRUCTIONS

Additional copies of this manual are available upon request at no charge.

IMPORTANT SAFETY INSTRUCTIONS

The employer shall instruct each employee in the recognition and avoidance

of unsafe conditions and the regulations applicable to his work environment

to control or eliminate any hazards or other exposure to illness or injury.

Ref: 29 CFR 1926.21 (b) (2)

It is understood that safety rules among companies vary. If a difference exists

between the instructions in this manual and the rules of the using company,

the more stringent rules (should/must) (take precedence/be applied).

Safety First

Greenlee Textron Inc. / Subsidiary of Textron Inc. 44455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

SAVETHESE INSTRUCTIONS

Additional copies of this manual are available upon request at no charge.

IMPORTANT SAFETY INSTRUCTIONS

Electric shock hazard:

This is not an insulated tool.

Contact with live circuits could

result in severe injury or death.

• This tool is intended for two-handed operation.

Maintain a firm grip on both handles during

operation.

• Do not cut ACSR or steel.

• Do not exceed the rated capacity of this tool.

• Inspect before use. Replace any worn or

damaged parts.

• Do not perform any service or maintenance other

than as described in this manual.

• Work only in areas that are well-lit, uncluttered,

and dry.

Failure to observe these precautions could result in

injury or property damage.

Pinch points:

Keep hands away from moving parts.

Wear eye protection when using

this tool.

Keep hands away from closing

blades.

Greenlee Textron Inc. / Subsidiary of Textron Inc. 54455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Specifications

Weight........................................................................................ 5-1/4 lbs (2.4 kg)

Length .........................................................................................19-1/8" (48.6 cm)

Width........................................................................... 4-1/32" (10.2 cm) at blades

6" (15.2 cm) at handles

Thickness......................................................................................2-1/2" (6.35 cm)

Handle force at maximum rating (750 MCM Copper)......................60 lbs (267 N)

Jaw opening................................................................ 1-3/16" (3.01 cm) minimum

Identification

Grips

Stationary

handle

Boot over

ratchet mechanism

Stationary

Jaw

Release

knob

Release

Movable

handle

Movable

Jaw

Capacity

Maximum Capacity Frequent Use

Copper 600 V 750 MCM (400 mm2) 500 MCM (240 mm2)

Aluminum 600 V 795 MCM (400 mm2) 750 MCM (400 mm2)

Communications cable O.D. 1-3/16" (30 mm)

Greenlee Textron Inc. / Subsidiary of Textron Inc. 64455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Operation

Electric shock hazard:

This is not an insulated tool.

Contact with live circuits could

result in severe injury or death.

• This tool is intended for two-handed operation.

Maintain a firm grip on both handles when using

this tool.

• Inspect before use. Replace any worn or

damaged parts.

Failure to observe these precautions could result in

injury or property damage.

1. Place the cable to be cut between the jaws.

2. Press the handles together until the ratchet clicks

once.

3. Open the handles until the ratchet clicks again.

4. Repeat steps 2 and 3 until cable is completely cut.

5. To open the blades, lift the movable handle until it

stops. Press the release knob outward as shown.

Wear eye protection when using

this tool.

Greenlee Textron Inc. / Subsidiary of Textron Inc. 74455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Maintenance

General

Maintain the tool with care. Keep the blades sharp

and the tool clean for better and safer performance.

Follow instructions for lubricating the cutter; lubrication

prolongs the tool life and enables the tool to cut with

less force. Keep grips dry, clean and free from oil

and grease.

Cleaning the cutter

Blow dirt and/or cable particles out of the drive

mechanism with compressed air.

Lubricating the cutter

Close jaws and place 3-in-one oil or equivalent on the

blades. Oil the jaw bolt (25), spacer (4), and jaw areas

around them. Also oil the master gear (16), and pawls

(15) at their respective shafts (19) and contact surfaces.

Oil the inside of the housing plates (13 and 23) where

contacted by the lever handle plates (14 and 22). Open

and close the cutter to spread the oil.

Disassemble, clean and lubricate the tool if it does not

operate smoothly.

Wear eye protection when using

this tool.

Keep hands away from closing

blades.

Pinch points:

Keep hands away from moving parts.

Greenlee Textron Inc. / Subsidiary of Textron Inc. 84455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Disassembly

This tool consists of three basic operating mechanisms

(see Figure 1).

1. Cutter jaw mechanism: stationary jaw (1), movable

jaw (3), jaw bolt (25), jaw spacer (4), return spring

(5), and related hardware.

2. Jaw drive mechanism: master drive gear (16),

master gear shaft (26), drive pawl (15), pawl spring

(12), pawl shaft (19), top and bottom handle plates

(14 and 22) and operating lever.

Jaw holding mechanism: holding pawl (15), pawl

spring (17), pawl shaft (19) and pawl release pin (27).

Maintenance (cont’d)

The jaw mechanism can be removed without removing

the boot. Both the jaw mechanism and drive mechanism

can be removed and serviced without disassembly of

the housing.

1. Turn back boot (33) and remove cap screw (21).

Release tension on extension spring (5) by opening

the operating lever and rotating release pin (27)

outward.

2. Turn back boot and remove nut (6).

3. Remove bolt (25) and spacer (4).

4. Disconnect spring (5) from housing (13).

Unbutton one side of button strip (34) and spread

the sides of the boot to clear the pawl release pin

(27). Push the boot forward (away from the handles).

Tip the boot as needed to disengage the boot from

the notches at the top and bottom of the housing.

Alternately move the boot forward at the top and

bottom until the boot can be rotated off the tool.

6. Remove retaining ring (9) from gear shaft (26).

Also remove two screws (8) from stop pin (20).

7. Remove shaft (26) and gear (16).

8. Remove the operating lever assembly.

9. Remove rubber bumpers (10) from release pin (27).

10. Remove two housing screws (11). Lift housing from

tool.

11. Remove two screws (11) to disassemble operating

lever assembly and remove pawl (15), pawl spring

(12) and pawl shaft (19).

Greenlee Textron Inc. / Subsidiary of Textron Inc. 94455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Assembly

Maintenance (cont’d)

2 & 8

35 & 7 16 13 20 14

28 29 30

6 & 25

9 & 26 10

11 11

JAW HOLDING

MECHANISM

TIGHTEN TO

190

170 INCH LBS.

BOOT XXX

ADHESIVE

USE LOCTITE

#416

INSTANT

ADHESIVE

LUBRICATION

POINTS

USE MOLYKOTE

SPRING

ANCHOR PIN JAW DRIVE

MECHANISM

OPERATING

LEVER

Figure 1

Greenlee Textron Inc. / Subsidiary of Textron Inc. 10 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070

764 Ratchet Cable Cutter

Note: Use Loctite

#262 on all screws and tighten all

5/16" diameter screws to 190/170 inch pounds.

Use Loctite

#416 adhesive (cyanoacrylate) to

attach boot and release pin bumpers (10).

Lubricate moving parts with Molykote

grease

(see Figure 1).

Assembly (cont’d)

1. Assemble handle assembly (39) to bottom of

housing plate (13) using two screws (11).

2. Assemble stop pin (20). Place a spare 3/8" diameter

by 1-1/2" screw through the master gear hole in

bottom housing plate (13) and place assembly on

bench with screws up (see Figure 2).

3. Lubricate pawl shaft (19) and assemble pawl shaft,

pawl (15) with pin (37) projecting from pawl surface,

spring (12), bottom handle plate (14) and top handle

plate (22) to handle assembly using two screws

(11). The long leg of the spring goes against the

bottom handle adapter (28) and the short leg goes

under the pawl (see Figure 3).

4. Insert master gear (16) between top and bottom

handle plates against drive pawl (15) and assemble

over “spare” screw in bottom housing plate

(see Figure 4).

5. Place holding pawl (15) with release pin (27) and

spring (17) over hole in bottom housing plate and

insert lubricated pawl shaft (19). The pawl will

engage the master gear. The long leg of the spring

goes against the handle adapter (28) where it

touches the bottom housing plate and the short leg

goes under the pawl (see Figure 4).

6. Thread housing cover (35) between handle plates

above the master gear—between spring (17) and

handle adapter (28) (see Figure 4).

Maintenance (cont’d)

Figure 3

13 20

Figure 2

15 27 19 17 28

Figure 4

Indice

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