HSINHO EXP951 User manual

EXP951
SEMIAUTOMATIC
POWDER ACTUATED TOOL
WITH POWER GRADINGAND SILENCER
OPERATORS MANUAL
WARNING!
SEVERE INJURY CAN RESULT FROM FAILURE
TOOBEY ALL INSTRUCTIONS IN THIS MANUAL

OPERATING PRECAUTIONS
Failure to follow these precautions may result in severe injury.
1. Safety first, never point the tool at anyone.
2. Never cock the tool against hands.
3. Always unload tool prior to any disassembly, cleaning, work breaks or
storage.
4. Never leave the tool unattended, store under lock & key.
5. Never load the tool until you are ready to use it.
6. Always insert fastener before cocking the tool.
7. If a load fails to fire, hold the tool firmly against the work surface for
thirty (30) seconds. If the tool still fails to fire, release the trigger and let
the tool back some from the work surface. Reposition the tool against
the work surface, depress it and pull the trigger again. If the load still
does not fire, wait another thirty (30) seconds, remove the tool from the
work surface carefully while keeping it pointed in a safe direction.
Remove the load from the tool and carefully dispose of it in a container
of water. Never leave unfired loads on the floor or work surface. Always
dispose of them properly.
8. Always inspect the tool prior to use to make sure that the tool is in good
working order, has no fractured or broken parts, and that there are no
obstructions in the barrel or load chamber.
9. If the tool does not work properly or is in need of repair, remove it from
service immediately, tag it as NEEDS REPAIR and contact a distributor
for repair.
10. Never modify any powder actuated tool.
11. Do not mix load colors and types.
12. Clean and inspect the tool daily or more often if necessary.
13. The user and any other persons in the immediate vicinity must wear
safety goggles and ear protection . Use the spall guard
whenever possible.
14. A warning sign with the following text must be erected:
"Danger! Powder Actuated Tool in use" where P.A.T. tools are in use.
15. Always store the tool in a secure and locked area when not in use.
REMEMBER SAFETY IS IN YOUR HANDS.

Ⅰ、EXP951 DESCRIPTION
EXP951 Tool is a powder actuated tool that uses .27 caliber, 10-shot strip loads.
There are three key features in the tool. One is infinite regulation of the driving
power between limits. Another is the cartridges advanced to the chamber
automatically. The other is silencer built in the EXP951. The tool is designed for
installation into concrete or steel.
SPECIFICATIONS
• Weight 2.3 kg • Length 39 cm
Ⅱ、ACCEPTABLE BASE MATERIAL
I. Always check material being fastened into for hardness before attempting any fastening
operation.
2. Using a fastener as a center punch, strike the fastener against the work surface using an
average hammer blow and check the results as shown below (Wear safety goggles when
performing this procedure).
If the fastener point is flattened,
the material is too hard for power
actuated fastening.
If the fastener penetrates the material
easily, the material is too soft.

If the fastener cracks or shatters, the
material is too brittle.
If the fastener makes a small Indentation
into the material, the material is suitable
for fastening.

Ⅲ、LOAD SELECTION
1. Only 6.8/11M red and black cartridges are required for 950.
2. In general, the red cartridge covers 90% of all applications. The black cartridge is
needed for the special fastening of steel to steel.
3. Failure to select the corect power level to be used could make a poor quality fastening.
LOAD COLOR
POWER REGULATION
POWER LEVEL
RED
1→3
LIGHT→EXTRA HEAVY
BLACK
1→3
MEDIUM→MAGNUM
IV、SAFETY INSTRUCTIONS
1. Never use the tool in a flammable or explosive area.
2. Have adequate ventilation at all times when discharging the tool.
3. Never load tool unless it is to be used immediately.
4. Never place your any body part over fastener loading end of tool.
5. Always hold the tool perpendicular to and firmly against the work surface when
making a fastening.
6. Always perform the misfire procedure if the tool fails to fire.
V、FASTENING APPLICATIONS
•The correct fastener length required can be easily and quickly determined by choosing the
embedment desired in the base material to achieve the best holding value, then trying the
fastener length that is 3mm longer than the embedment depth.
•When fastening into concrete, always maintain a minimum spacing of 70mm from any
free edges and 70mm between fastenings. The concrete thickness should be at least three
times the intended penetration depth.
•When fastening into steel, always maintain a minimum spacing of 12mm from any edges
and 40mm between fastenings.

Ⅵ、OPERATION
1.Grasp barrel assembly and slide forward rapidly until it stops. Push barrel assembly
back into tool to the closed position. This sets piston into firing position.
2.Insert power fastener into muzzle of tool, head end first. Push the fastener until point is
even with end of tool.
3.Select the proper power level of power load strips. Always insert power load strips
through bottom of handle. Push power load strip in until even with bottom of handle.
4.Adjust the fastener driving power by turning the regulating wheel :
1 = min. power 3 = max. power
Start with the min. power. If the fastener does not penetrate deep enough,
increase the driving power.

5 .Place the muzzle of tool perpendicular to work suface without tilting the tool.Push tool
against work surface until sliding action of barrel stops.
6. Grasp muzzle cap and slide barrel forward rapidly until it stops. Push
barrel assembly back into tool to the closed position . This advances the
power load strip and resets the piston for the next fastening.
WARNING: Do not depress barrel assembly past the closed position when
loading new power fastener. Live power load is in firing position.
7.Should the tool fail to fire, hold the muzzle firmly against the work surface for
30 seconds. Release the trigger and remove pressure on the tool while holding
the muzzle against the work surface. Again press the tool firmly against the
work surface and pull the trigger. If the tool still fails to fire, hold the tool
firmly against the work surface for another 30 seconds before advancing the
power load strip. Use remaining loads in strip. Discard power load strip into
water or oil.

Ⅶ、TOOL DISASSEMBLY
WARNING: Always unload a power actuated tool before disassembling,
replacing barrel, cleaning, or assembling.
A. REMOVNG BARREL ASSENBLY
1.Using screwdriver, lift end of annular spring and rotate spring until stop is
uncovered
(see Figure l). Annular Spring
Figure 1 — Rotating Annular Spring to Uncover Stop
2.Push stop towards rear of tool and remove (see Figure 2).
Figure 2 — Removing Stop
3.Pull barrel assembly out of housing.
4.Unscrew muzzle cap.
5.Remove piston assembly from barrel (see Figure 3).
Figure 3 — Removing Piston Assembly from Barrel
Stop

Ⅷ、EXP951 PARTS SCHEMATIC & LISTING
Key NO.
Part NO.
Description
Key NO.
Part NO.
Description
1
901011
Housing Assembly
9
456048
Bolt
2
450108
O Ring
10
901700
Rubber Pad Assembly
3
901800
Silencer Assembly
11
903600
Rear Pad & Power Indicator Assembly
4
901010
Pawl Assembly
12
901002
Cover
5
901007
Trigger
13
901005
Bolt
6
902000
Rock Arm Assembly
14
901301
Advance Bar
7
455041
Spring, Rock Arm
15
901302
Advance Spring
8
455042
Pin, Rock Arm
16
901303
Pin, Advance

Key NO.
Part NO.
Description
Key NO.
Part NO.
Description
17
901205-2
901219
Piston Assembly (flat head)
Piston Assembly (recessed head)
28
901107
Spring, Pin Connector
29
902403
Spring, Sear Holder
18
452220
Piston Ring
30
454037
Spring , Firing Pin
19
902310
Guide Assembly
31
454100
Firing Pin Assembly
20
901210
Plastic Buffer
32
454034
Sear Spring
21
901105-A
Pin, Connector
33
454033
Sear Pin
22
901104
Push Pin
34
454035
Sear Holder
23
901100-A
Liner Assembly
35
902312
Guide Sleeve
24
600313
Ball
25
901106
Annular Spring
26
306012
Key, Stop
27
901200-B
Barrel Assembly

IX、CLEANING & MAINTENANCE
A、CLEANING & MAINTENANCE
The parts shown below should be cleaned each day, the housing each week. Please
use a brush & cleaning oil to remove heavy build up. If oil is used, be sure to wipe
parts dry to minimize new residue build-up.
(1). piston (2). inside and outside of fastener guide
(3). inside of liner (4). inside and outside of barrel
B、REASSEMBLY
1.Insert piston in the barrel.
2.Insert fastener guide in the barrel.
3.Insert the barrel in liner (Slot in the barrel must align with silencer)
X、TROUBLE SHOOTING
A、MISFIRE PROCEDURE
If the tool does not fire after squeezing trigger, continue to hold the depressed
tool firmly against the work surface for at least 30 seconds. This will protect the
operator and bystanders from injury in the event of a delayed firing. Then,
carefully open the tool, remove the load strip, and put it into a container of water
or other nonflammable liquid. Never carelessly discard, or throw into a trash
container, any unfired strip load.
B、THE BUFFER IS DAMAGED BY OVERDRIVNG A FASTENER
If the damaged buffer jams on the piston, you may strike protruding piston
sharply against a hard surface. This will separate piston and buffer. Remove
piston completely from fastener guide. Pull buffer off fastener guide to one
side and press in a new one.