Sunex Tools SX556-6 Original instructions

1" DRIVE IMPACT WRENCH
WITH 6" EXTENDED ANVIL
SX556-6
Read this manual before
operating tool.
Always wear eye protection
when operating or performing
maintenance on this tool.
Always wear hearing
protection when operating
this tool.
WARNING
Product Safety Information
Save these instructions

To reduce the risk of injury, anyone using, repairing, maintaining, or
changing accessories on this tool must read and understand these
instructions before performing any of these tasks.
WARNING
Always inspect, operate, and maintain this tool in
accordance with American National Standards Institute
Safety Code of Portable Air Tools (ANSI B186.1) and any
other applicable safety codes and regulations.
These tools are rated at 90 psi / 6.2 bar max air
pressure for safety, top performance, and maximum
durability of parts; do not exceed this pressure while
the tool is running.
Always shut off air supply, drain hose of air pressure
and disconnect tool from air supply when not in use,
before changing accessories, or when making repairs.
Never direct air at yourself or anyone else.
Always wear impact-resistant eye and face protection
when operating or performing maintenance on this tool.
High sound levels can cause permanent hearing loss.
Always use hearing protection when using this tool as
recommended by your employer or OSHA regulation.
Do not wear jewelry or loose fitting clothes.
Do not use quick disconnect couplings at tool. See
operating instructions for proper set up.
Whipping hoses can cause serious injury. Always
carefully check for damaged or loose hoses and fittings
before operating this tool.
Avoid direct contact with accessories during and after
use. Gloves should be worn to reduce the risk of cuts
or burns.
Use only sockets and accessories rated for use with
Impact Wrenches which are in good condition. Sockets
in poor condition or hand sockets and accessories can
shatter and cause injury.
Never run the tool off of the work. The tool may run
too fast and cause the accessory to be thrown off of
the tool.
Serious injury can result from over-torqued or
under-torqued fasteners. Assemblies requiring a
specific torque must be checked using a torque meter.
"Click" torque wrenches do not check for potentially
dangerous over-torque conditions.
Slipping, tripping, and/or falling while operating air tools
can be a major cause of serious injury or death. Be
aware of your surroundings and any excess hose left on
the walking or working surface.
Pneumatic tools can cause vibration in use. Vibration,
repetitive motions or uncomfortable positions over
extended periods of time may be harmful to your hands
and arms. Discontinue use of tool if discomfort, tingling
feeling or pain occurs. Consult a physician before
resuming use if any of these symptoms occur.
Do not stretch or overreach while using this tool.
If tool appears to malfunction, remove from service
immediately and arrange for repair.
Never use tool if there is any chance of coming into
contact with line electricity.
Use only Sunex certified spare parts for any repair made
to tool. Repairs should only be performed by properly
trained persons.
Do not lock, tape or wire the tool valve in the "on/off"
position.
Do not allow the exhaust air to come in contact with hot
surfaces or flames.
Avoid inhaling dust or handling debris from the work
process, which can be harmful to your health. Use dust
extraction and wear respiratory protective equipment
when working with materials which produce airborne
particles.
Some dust created by power sanding, sawing, grinding,
drilling and other construction activities contains
chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
Some examples of these chemicals are:
- Lead from lead based paints
- Crystalline silica bricks and cement and other
masonry products
- Arsenic and chromium from chemically-treated
lumber
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter
out microscopic particles.
Additional Safety Warnings
Do not modify this tool or its accessories.
This tool is not recommended for use in explosive
atmospheres or underwater use.
Operators and maintenance personnel must be
physically able to handle the bulk, weight, and power
of this tool.
This tool is for professional use only.
SAFETY INSTRUCTIONS - DO NOT DISCARD - GIVE TO USER
SX556-6: Parts Breakdown & Operating Manual 2 Rev. 5/7/12

Instruction Manual
This product is designed to tighten or loosen threaded
fasteners. No other use is permitted.
Air Supply Requirements
Tool is designed to operate at 90 psi (6.2 bar) at free speed
measured at the tool, of clean, dry air. Operating this tool at
higher pressures will drastically reduce the tool life and could
cause injury.
The air inlet thread on this tool is a standard 1/2" NPT.
Line pressure should be increased for any unusually long
air hose run (over 25 feet). Minimum hose diameter should
be 1/2" I.D. and all fittings should have the same inside
diameter. See diagram below for proper air supply setup.
Lubrication
Lubricate the tool each day after use with quality SAE #10
air motor oil. Add the oil to the air inlet or into the hose at the
nearest connection to the air supply then run the tool until
all excess oil is expelled from the exhaust. Total oil quantity
needed for this procedure is approximately 1 ounce.
Operation
This tool is an impacting tool and not a torque meter.
When specific torque is required, it must be checked with
a torque meter after fitting the fastener with the Impact.
If a nut does not move within five seconds, use a larger size
Impact. Do not use Impact Wrench beyond rated capacity, as
this can drastically reduce the tool life.
Drain Daily
RegulatorOilerQuick CouplerLeader
Hose
Nipple
Do Not Install
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose
Specifications
Square Drive Size ..............................................1" (25.4mm)
Max. Torque...................................1,600 Ft. Lbs. (2,169 Nm)
Working Torque................100-1,200 Ft. Lbs. (136-1627 Nm)
Free Speed .......................................................... 4,000 RPM
Length........................................................22.5" (571.5mm)
Weight..................................................... 26.2 Lbs. (11.9 kg)
Avg. Air. Cons............................................10 cfm (283 l/min)
Air Inlet................................................................... 1/2" NPT
Min. Hose Size......................................... 1/2" I.D. (12.7mm)
SX556-6: Parts Breakdown & Operating Manual 3 Rev. 5/7/12

REF. PART
NO. NO. DESCRIPTION QTY.
1 RS55601 Screw 4
2 RS55602 Lock Washer 8
3 Oil Seal (Incl. w/ #5) 1
4 RS55604 Hex Socket Head Set Screw 1
5 RS55605 Front Casing Assy. (Incl. #3, 5, 9) 1
6 RS55606 Lock Washer 4
7 RS55607 Hex Socket Cap Screw 4
8 RS55608 Side Handle 1
9 Anvil Bushing (Incl. w/ #5) 1
10 RS55610 Front Washer 1
11 RS55611 O-Ring 1
12 RS55612 Retainer Ring 1
13 RS113713 Extended Anvil (Incl. #12-14) 1
14 RS55614 O-Ring 1
15 RS55615 Hammer Cage 1
16 RS55616 Hammer 1
17 RS55617 Hammer Cam 1
18 RS55618 Spacer 1
19 RS55619 Front Cylinder Gasket 1
20 RS55620 Motor Housing Assy. (Incl. #20, 22, 23, 26, 27) 1
21 RS55621 All-Metal Locking Nut 4
22 Bearing
(Incl. w/ #20) 1
23 Front Plate
(Incl. w/ #20) 1
24 RS55624 Rotor 1
25 RS55625 Vane (pack of 5) 1
26 Spring-type Straight Pin
(Incl. w/ #20) 2
27 Cylinder
(Incl. w/ #20) 1
28 RS55628 Spring-type Straight Pin 1
REF. PART
NO. NO. DESCRIPTION QTY.
29 RS55629 Rear Plate 1
30 RS55630 Bearing 1
31 RS55631 Rear Cylinder Gasket 1
32 RS55632 Rear Casing Assy. (Incl. #32, 37, 45, 46) 1
33 RS55633 Hex Socket Cap Screw 4
34 RS55634 Spring-type Straight Pin 1
35 RS55635 Spring-type Straight Pin 1
36 RS55636 Trigger 1
37 Reverse Valve Bushing (Incl. w/ #32) 1
38 RS55638 Reverse Valve Assembly (Incl. #38-41) 1
39 Steel Ball (Incl. w/ #38) 1
40 Spring (Incl. w/ #38) 1
41 Spring-type Straight Pin (Incl. w/ #38) 1
42 RS55642 Spring-type Straight Pin 1
43 RS55643 O-Ring 1
44 RS55644 Screw 1
45 Throttle Valve Bushing (Incl. w/ #32) 1
46 Rubber Seal (Incl. w/ #32) 1
47 RS55647 Throttle Valve Plunger 1
48 RS55648 Steel Ball 1
49 RS55649 Spring 1
50 RS55650 O-Ring 1
51 RS55651 Air Inlet Connector 1
52 RS55652 Rubber Shield 1
53 RS55653 Flat Washer 8
Also available: RS556TK Tune-Up Kit (Incl. #3, 11, 12, 14, 19, 25
(5), 31, 43, 46, 50)
1" DRIVE IMPACT WRENCH
WITH 6" ENTENDED ANVIL
SX556-6
3
12
4
5
9
8
67
14
12
13
25
24
23
22
20
19
33
2
36
35
34 43 44
45
46
47
48
49
50
51
39 40
41
38
37
32
31
30
29
28
26
27
26
21
42
11
16
17
15
10
18
53
53
52
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