Greenlee 764 Guide

OPERATION, SERVICE AND PARTS
INSTRUCTION MANUAL
999 9803.3 © 1997 Greenlee Textron Inc. IM 1078 REV 5 5/97
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.
3. 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).
5. 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)
34
33
2 & 8
35 & 7 16 13 20 14
28
19
31
12
13
27
15
28 29 30
11
11
22
23
21
6 & 25
21
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
1
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)
14
22
28
19
15
12
Figure 3
13 20
Figure 2
26
9
26
16
15 27 19 17 28
13
28
23
Figure 4

Greenlee Textron Inc. / Subsidiary of Textron Inc. 11 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
764 Ratchet Cable Cutter
Maintenance (cont’d)
Assembly (cont’d)
7. Place top housing plate (23) over tool assembly,
using “spare” 3/8" screw and release pin (27) for
alignment. Assemble nuts (18) loosely to hold
housing in place.
8. Lubricate gear shaft (26) and assemble in place of
3/8" “spare” screw.
9. Assemble retaining ring (9) to gear shaft (26).
10. Assemble boot (33) by spreading rear of boot and
slipping over front of tool. Alternately advance the
boot at the top and bottom until the boot tabs can be
inserted in notches in the housing. Spread the boot
over release pin until ends enter slots in boot.
Fasten boot in the back using button flap (34).
Assemble bumpers (10) to pin (27).
Note: To replace jaws, see steps 11-18; also see
Figure 5 and exploded view. To replace entire
cutter head (38), skip steps 11, 12, and 15.
11. Assemble spring (5) to movable jaw (3) using stud (7).
12. Assemble screw (2) and nut (8) into movable jaw (3).
13. Reconnect spring (5) to housing (13).
14. Assemble fixed jaw (1), movable jaw (3) and spacer
(4) into housing assembly using lubricated bolt (25),
nut (6) and two nut retainers (24).
15. Assemble jaw anchor screw (21).
16. Tighten nut (6) to a maximum jaw clearance of
0.007". To achieve 0.007" clearance, tighten nut (6)
snugly so that jaws are against each other. Then
back off nut to the first open slot aligned with the
drive pin hole. There should be not more than
0.007" gap between blades. Operate the cutter to
ensure that the jaws move freely.
17. Bend tab (5) on nut retainer (24) to secure nut (6).
18. Apply adhesive Loctite®#416 sparingly to assemble
two bumpers (10) and to attach boot to housing
(see Figure 1).
3
7
5
33
25
6
24
Figure 5

Greenlee Textron Inc. / Subsidiary of Textron Inc. 12 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
764 Ratchet Cable Cutter
ExplodedView
CUTTERHEAD
No. 38
24
25
23
21
26 10 11
11
11 22
20
19
16
5
7
4
8
3
2
1
21
25
1
2
3
86
7
24
4
5
12
15
17
19 28
27 28
30
31
29
18
18
15
37
13 24
9
10
18
18
34
33
29
11
6
14
32
32

Greenlee Textron Inc. / Subsidiary of Textron Inc. 13 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
764 Ratchet Cable Cutter
KEY PART NO. DESCRIPTION QTY.
1 503 8625.5 Jaw, stationary cutter ............................................ 1
2 905 0579.4 Screw, 1/4–20 x 1/2" socket head
3 503 8475.9 Jaw, movable cutter .............................................. 1
4 503 5532.5 Spacer, 0.380" x .750" x .376" .............................. 1
5 905 3985.0 Spring, extension 0.202" x .300" x 2.75"............... 1
6 905 4119.7 Nut, hex 3/8–24 ..................................................... 1
7 905 3599.5 Stud, 0.161" x 1/2"................................................. 1
8 905 4120.0 Nut, 1/4–20 lock..................................................... 1
9 905 0453.4 Ring, retaining Truarc®#5100-37.......................... 1
10 905 3942.7 Bumper, 0.187" x .375" x .500" rubber.................. 2
11 905 4271.1 Screw, cap 5/16–24 x 1-1/4" socket head............. 4
12 503 8140.7 Spring, torsion ....................................................... 1
13 503 8477.5 Plate, housing bottom............................................ 1
14 503 5526.0 Plate, bottom handle ............................................. 1
15 503 5648.8 Pawl ....................................................................... 2
16 503 5646.1 Gear, master 12T .................................................. 1
17 503 5621.6 Spring, torsion 0.380" x .450" x .140" ................... 1
18 905 4270.3 Nut, 5/16–24 lock .................................................. 4
19 503 5538.4 Shaft, pawl 0.312" x 1.00" ..................................... 2
20 503 8478.3 Pin, stop................................................................. 1
21 905 3987.7 Screw, cap 5/16–18 x .312" socket head.............. 1
22 503 5525.2 Plate, top handle ................................................... 1
23 503 8476.7 Plate, housing top.................................................. 1
24 503 8481.3 Retainer, nut .......................................................... 2
25 905 4269.0 Bolt, blade 3/8–24 x 1-3/4" .................................... 1
26 503 5534.1 Shaft, master gear................................................. 1
27 905 3941.9 Pin, roll 0.187" x 2.25" ........................................... 1
28 503 8493.7 Adapter, handle ..................................................... 2
29 503 5540.6 Handle ................................................................... 2
30 500 3466.9 Decal, warning....................................................... 1
31 503 5190.7 Decal, small Greenlee safety ................................ 1
32 502 2300.3 Grip, rubber 0.995" x 1.50" x 5.09"........................ 2
33 503 5530.9 Boot, cutter ............................................................ 1
34 503 4079.4 Flap, button............................................................ 1
37 905 4007.7 Pin, roll 0.187" x .375" ........................................... 1
Parts List
Repair Parts List
KEY PART NO. DESCRIPTION QTY.
38 503 6037.0 Cutter head
(includes keys 1, 2, 3, 4, 5, 6, 7, 8, 21, 24, 25)..... 1
39 503 5885.5 Handle assembly
(includes keys 28, 29, 30, 31, 32) ......................... 1

Greenlee Textron Inc. / Subsidiary of Textron Inc.
4455 Boeing Drive, Rockford, IL 61109-2988 USA
General Offices: 815/397-7070
Customer Center and Field Service: 800/435-0786
International Customer Service: 815/397-7070
Fax (24 Hour) Customer Center: 800/451-2632 • 815/397-1865
Canada Fax (24 Hour) Customer Center: 800/524-2853
Fax (24 Hour) International Customer Service: 815/397-1391 Printed in the U.S.A.