Fatigue Technology Inc.
401 Andover Park East
Seattle, WA • USA 98188-7605
Tel: (206)246-2010
Fax: (206)244-9886
57429 – Rev L
7
S
ECTION
4.0: P
ULLER
U
NIT
M
AINTENANCE
The puller requires routine checking and periodic preventative maintenance to ensure safe, trouble-free operation.
No special maintenance is required. The following maintenance actions are suggested.
CAUTION:
Before attempting any maintenance operations on the puller unit, disconnect the PowerPak from the
air supply or disconnect the puller from the PowerPak or hand pump.
4.1
GENERAL CLEANING
1. Periodically clean the outer surfaces of the puller unit and PowerPak.
2. When not in use, ensure thread protectors are re-installed.
3. Keep all hose connections free of dirt and grime. Doing so will dramatically extend the life of pumps and
puller seals.
4.2
LUBRICATION
1. There is no internal lubrication requirement for the puller unit.
2. Whenever the puller is to be stored for any length of time, maintain a thin coat of 10-weight oil on the
outside of black oxide surfaces.
4.3
INSPECTION
1. Periodically inspect threaded fittings, hoses, and strain relievers for cracks, leaks or other damage. Repair
and replace immediately.
4.4
DISASSEMBLY
Refer to Section 6.4 for parts lists unless otherwise noted. For Little Brute Puller Units below Serial #406,
Step 7 will not be possible since the air seal adapter is adhered to the piston rod. These two parts and the
required seals are referred to as the piston rod assembly.
1. Unthread and remove the nosecap assembly.
2. Unthread and remove the mandrel from the threaded adapter (8).
3. Loosen the lockring (10) to remove tension from the end cap (9).
4. Unthread and remove the end cap (9).
5. Unscrew and remove the barrel (4) from the housing (2).
6. Unthread and remove the threaded adapter (8) or chuck assembly if so equipped; use the flats on the back of
the threaded adapter (8) and mating air seal adapter (7).
7. Remove the spring pin (26) (if present, see Figure 6.4-1). Unthread and remove the air seal adapter (7).