Fatigue Technology Inc.
401 Andover Park East
Seattle, WA • USA 98188-7605
Tel: (206)246-2010
Fax: (206)244-9886
49050-REV M
1
S
ECTION
1.0: I
NTRODUCTION
This instruction manual contains information on the operation and maintenance of the FT-20 portable hydraulic
PowerPak. To obtain optimum performance and many years of trouble-free service, operate the PowerPak properly
and follow maintenance procedures carefully.
Read this manual before operating the PowerPak and retain it for future reference. If requested, FTI will provide
this manual in the language of the end-user.
1.1
ABOUT THE FT-20 POWERPAK
The FT-20 is a portable PowerPak that supports the FTI system of tooling. Because of its small size and light
weight, the FT-20 is particularly useful for work in areas with difficult or restricted access. It may be used to
operate FTI hydraulic puller units in the Little Brute and Medium Brute family. The FT-20 may also be used with
the Big Brute (BB-30) puller unit, though its operation will be slow when compared to the larger FT-200 PowerPak.
The FT-20 contains an air operated hydraulic pump that generates up to 10,000 pounds per square inch (psi)
hydraulic pressure (4,000 psi for the FT-20-4K). The air motor is driven by compressed air at 90 to 120 psi and
20 cubic feet per minute (cfm) flow through a 3/8-inch minimum inside diameter air hose. See Section 6.0 for
PowerPak configuration and schematics.
NOTE: The FT-20 is shipped with hydraulic fluid already in the unit. The FT-20 is shipped with a non-
vented cap on the reservoir. This must be replaced with the supplied vented cap and dipstick prior to
operation. If there is a need to fill the FT-20 with hydraulic fluid or drain the fluid for reshipment, please
refer to Section 4.3 for instructions.
1.2
IDENTIFICATION OF FT-20 SERIES POWERPAKS
There are three different models in the FT-20 series. The primary identification method is identified on the decal on
the side of the manifold.
•
FT-20 is the original pump.
•
FT-20A is an updated model. This is the most common model.
•
FT-20-4K is a FT-20A with a reduced pressure setting of 4,000 psi.