5. What To Do, If; 6. Repair Instructions; 6.1 Motor Disassembly; 6.2 Dismounting The Pulse Unit - Cleco 15STH C Serie Manual De Instrucciones

15STH.C

5. What 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?
- Is the exhaust air <113> throttle open?

6. Repair instructions

6.1 Motor 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>.
- 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>.

6.2 Dismounting the Pulse Unit

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! Caution!
To maintain tool performance and minimise maintenance
costs use CLECO parts and recommended lubricants
only. Use of other than CLECO parts releases the manu-
facturer from all guarantee and warranty.

6.3 Mounting the Pulse Unit

- Reassemble by reversing the disassembly process as shown in
the part drawing.
- Please note position of the hydraulic cylinder <89> and its relation
to the hydraulic blade <81> (7. Assembly Instructions, figs. 1 to 5).
- Use of device <D> is recommended to simplify reassemble
(fig. 2).
- Oil filling according to 6.4.
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