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15STH
2. T
ORQUE ADJUSTMENT
Disconnect air hose before adjustment.
-
Hold sleeve (97) by hand.
-
Using Allen key <100>, turn adjustment screw <85>
counterclockwise until the stop is reached. This represents the
minimum torque setting.
-
Turning the adjustment screw clockwise approx. 0 - 5 full turns will
adjust the tool for max. torque range: 5 - 15Nm (3,7-11,1 lbf.ft).
Caution!
To improve the shut-off accuracy, especially on a hard
joint, a very sensitive set-up of the torque adjustment
screw <85> is important.
3. M
S
AINTENANCE AND
In order to avoid failures
-
check regularly the oil level of the pulse unit <102> and
-
do oil change after approx. 500 hours' operation or at least every
12 months and renew gasket set <104>.
4. W
,
...
HAT TO DO
IF
...there is no shut-off?
- Is the dynamic air pressure too low or high?
- Has torque adjustment been checked?
- Is enough oil inside the pulse unit?
- Is it a floating connection (e.g. with extension, reduced shaft bolt)?
- Is the inside diameter of the air connectors too small?
...the torque scatter is too wide?
- Is the flow pressure too high?
- Is there air inside the pulse unit?
5. R
EPAIR INSTRUCTIONS
5.1 M
OTOR DISASSEMBLY
-
Clamp the motor housing <31> of the tool in a soft-jawed vise.
-
Use a strap wrench to remove housing <94> counterclockwise and
pull off.
-
Remove flat head screw <30> and reverse button <29>.
<100>
torque adjustment
Example for torque setting
1.
Bolt M6 8.8 = 10 Nm (~7,38 lb.ft)
2.
Set torque screw by 2 turns
<..> = Index for spare parts or devices
see 8. Spare parts list and 9. Fixtures order list
ERVICE
-
Remove o-ring <60>.
-
Remove ball <59>.
-
Loosen end plate <58> counterclockwise.
-
Use the hex of the rotor spindle to clamp unit horizontally in a vise.
-
Pull off the motor.
-
Remove faucet bolt <43> counterclockwise from the shut-off
piston <39>.
-
Press rotor <53> from grooved ball bearing <47>.
-
Remove threaded ring <49>, spring <50> and actuating bolt <51>.
5.2 D
ISMOUNTING THE
Disassembly should only occur if the oil filler unit <A> is
available! Pulse unit has to be at room temperature.
-
Remove quick change chuck retaining rings, washer, sleeve and
compression spring.
-
Dismounting pulse unit <102> from the housing <94>.
-
Clamp the hydraulic cylinder <89> slightly in a vise with flat chops.
To avoid endangering health or the environment, follow
safety data sheet DIN52900.
-
Loosen threaded ring <63> with device <C>.
-
Loosen lock screw <90>.
-
Unclamp hydarulic unit from the vise.
-
Remove lock screw <90> over an oil pan and dismount pulse unit
by applying light pressure on hydraulic rotor <79>.
Hydraulic blades are spring loaded!
-
Disassemble remaining parts of the hydraulic rotor by removing
the two retaining ring <72> and pin <77>.
-
Clean all parts.
Caution!
To maintain tool performance and minimise maintenance
costs use GARDNER-DENVER parts and recommended
lubricants only. Use of other than GARDNER-DENVER
parts releases the manufacturer from all guarantee and
warranty.
shut-off
torque
Turns of valve screw <85>
P1521E 11/00
GARDNER-DENVER
P
U
ULSE
NIT
15STHF
15STH
example
7
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