5
• Split Upper Buffer Washer (9)
• Insert new Impact Tool (4)
5. With parts ((4), (6) - (9)) positioned inside Threaded
Retainer (5), screw Threaded Retainer (5) over Pneumatic
Device (1).
6. Lock Threaded Retainer (5) in place with Retainer Lock
Spring (10).
OPERATION
OVERVIEW
Assembly of unions with Safety Hammer should be done by
persons qualified to do so either by training or reading and
understanding the manual. Training is available on a regular
basis from Weir SPM. Contact Weir SPM at 1-800-342-7458 for
more information.
Prior to use, all Safety Hammer and hammer union
components should be inspected for general damage. Any
damaged part should be immediately withdrawn from use.
Failure to follow Weir SPM suggestions for equipment,
methodology, and verification may result in improper
installation of Safety Hammer and hammer union
components, possibly resulting in injury and even
death.
INSTALLATION EQUIPMENT, ACCESSORIES
AND SPECIFICATIONS
Minimum Air Requirements - In order for the Safety
Hammer to function as intended, minimum air
requirements must be met.
Weir SPM recommends:
• 29 SCFM per Safety Hammer
• Air pressure of 90 psi at the Safety Hammer
• 1/2" air supply hose size with 3/8" NPT male
thread plug and 1/2"hose barb coupler.
Failure to supply these minimum requirements will increase
assembly time and possibly reduce life of hammer tool due to
starvation. In order to minimize pressure drop from the
compressor, it is recommended that the minimum air supply
hose size be observed.
UNION ASSEMBLY:
The below instructions detail the suggested steps on how to
properly assemble a hammer union.
1. Unions should be properly cleaned and lightly oiled before
using. Union seals should be visually examined prior to
makeup and replaced if worn, torn, or cracked.
2. Hand tighten hammer union connection until wing nut
ceases to rotate.
3. Slide Safety Hammer adapter over wing nut so that it bears
against one of the three lugs.
Orient so that the impact
tool striking the wing nut lug will tighten the
connection.
4. Apply a turning force to the gooseneck handle until the
wing nut ceases to rotate.
5. Squeeze the trigger and apply a slight turning force to the
gooseneck handle.
6. The hammer union connection is tight when the wing nut
ceases to rotate. A noticeable change in impact sound normally
accompanies this.
UNION DISASSEMBLY:
The below instructions detail the suggested steps on how to
properly disassemble a union connection.
1. Slide Safety Hammer adapter over wing nut so that it bears
against one of the three lugs.
Orient so that the impact
tool striking the wing nut lug will loosen the
connection.
2. Squeeze the trigger and apply a slight turning force to the
gooseneck handle.
3. The hammer union connection is loose when the wing nut
can be turned by hand.
4. Complete removal of wing nut by hand.
Weir SPM has determined that the Safety Hammer,
when used in accordance with these recommended
practices, will produce adequate make-up and break-
out power.
It is important to note that operating conditions will
differ among service companies and their procedures.
Type and technique of operations vary drastically
around the world. Customers must evaluate their
specific application and establish procedures and
maintenance that guarantee that connections are
properly assembled. Weir SPM is available to provide
guidance, but the end-user of the equipment has
ultimate say and responsibility on how it is applied.
USING THE SAFETY HAMMER
