Teryair SN29PG Operation And Maintenance Manual

Product: Needle Scaler

MODEL: SN29PG

FF - MM - 123 REV - 2

Operation & Maintenance Guide

Sheet 1 of 5

ISO 9001 : 2008

Needle Scaler SN29PG

Operation & Maintenance Guide

OPERATION:

SN29PG Needle Scalers are rugged, dependable tools designed to give you years of satisfactory service. Follow
the instructions mentioned here to enhance the life and performance of your scaler.

DAILY BEFORE OPERATING:

Disconnect and pour in 1 to 2 ounces of recommended oil in to the tool and reconnect hose after blowing out any
accumulated dirt in the hose line before connection.

AIR SUPPLY:

Tool should not be operated at air pressure below 5.5 Bar (80psi) and above 6.9 bar (100psi).The correct
operating pressure is 6.2 bar (90 psi).
Ensure that only 3/8" (10 mm) bore airline is used and all couplings are tight, leakproof and in good condition.
The air should be clean, dry and lubricated. Install a FRL unit as close as operation will permit.

RECOMMENDED LUBRICANTS:

LUBRICATION REQUIREMENTS:

Always install a line lubricator on the air line as close to the tool as possible. A Filter Regulator Lubricator unit (FRL)
is strongly recommended. Keep the lubricator bowl topped up with recommended grade of oil and check that the
oil is reaching the tool. Running the tool without lubrication is likely to cause damage to the components causing
premature replacement.

ABOVE 270C - 800F 50C-270C 400F-

800F

BELOW 50C 400F

SHELL Toona R. 72 Toona R. 41 Toona R.27
MOBIL Almo 529 Almo 527 Almo 525
ESSO ----- Arox.EP.65 Arox EP.45
CALTEX Rando Oil 100 Rando Oil 100 Rando Oil 46
CP ----- ----- Airolene Tool Oil
TEXACO Regal oil F (R&O) Regal Oil PE (P&E) Regal Oil PE (R&O)
DALTRON Silkolene 881 Silkolene 548/T Silkolene 733
BURMAH CASTROL Castrol RD Oil 3 Castrol RD Oil Light Megna SPX
DUCKHAM Garnet 7 Garnet 6 Zero Fio 5
STERNOL Merlin 87 Merlin 71 Merlin 54
PETROFINA Purifoc 53 Purifoc 46 Purifoc 32
CHEVRON Vistac Oil 18X Vistac Oil 19X Vistac Oil 9X
IND OIL Servo Spyn – 22 ----- -----

Sheet 2 of 5

FF - MM - 123 REV - 2

CAUTION:

Assemble Nipple in the control body (20) (supplied separately).

MAINTENANCE:

To disassemble SN29PG Needle Scaler- Disconnect air supply and loosen socket head bolt(18) on the front tube(06)
and slide out front tube(06) from intermediate tube(07). Unscrew socket head bolt(18) on intermediate tube(07) and
unscrew it and remove. Along with intermediate tube(07) different parts -Needle(10), spring return(05),Needle holder
(09) and Anvil (08) will come out. Separate them from intermediate tube (07) .Now hold housing (01) of the tool in
soft jaw vice and unscrew the sleeve (02) from housing (01). Slide out piston (03) from the sleeve (02). Remove ‘O”
Rings (04) (19) from sleeve (02). If necessary disassemble the throttle components-By opening the plug throttle valve
(12) and carefully pulling out the throttle valve (11), spring throttle valve(13), ‘O’ ring(17) on throttle valve(11) and ‘O’
Ring(14)on plug throttle valve (12). If necessary, punch out the roll pin (16) and remove lever (15 ) from control body
(20). Hold AIF of control body(20) in vice and un-screw housing(01) so that rubber grip(21) and control body (20) will
be separated.(Note: Usually housing (01) does not need to be dis assembled to remove control body(20) and rubber
grip(21). It is recommended that this assembly should not be dismantled.)
Clean all metal parts in light solvant and inspect carefully for signs of wear, Replace components that appear
worn out or damaged. Coat parts with recommended light oil and reassemble carefully in the reverse sequence.