FTI LB-10 - Figure 5.0-7 Trigger Response Valves

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: (206)246-2010 Fax: (206)244-9886
12 57429 – Rev L
PROBLEM
CAUSE
SOLUTION
3. PowerPak will not generate
constant pressure (or hiccups).
(a) Trigger response valve
requires adjustment. Figure
5.0-7 shows the trigger
response valves.
***(For pullers with a cartridge
trigger assembly (see Section 6.2),
the trigger response valve should be
closed.)***
(a) Adjustment procedure:
(1) Loosen locknut on trigger
response valve.
(2) Using a screwdriver, open
screw counterclockwise
until PowerPak will not
start when puller trigger is
depressed.
Trigger Response Valve
Trigger Response Valve
(3) Turn screw clockwise until:
- PowerPak generates
constant pressure when
puller trigger is depressed,
and
- PowerPak starts instantly
when puller trigger is
depressed and stops
instantly when released.
When the puller trigger is
depressed, the PowerPak
should be run at the pre-set
pressure until the trigger is
released.
(4) Hold set screw in position
and tighten locknut until
snug.
4. PowerPak will not operate or
maintain sufficient pressure
(6,000 psi (41.37MPa).)
(a) Hydraulic pressure requires
adjusting (applicable to
FTI-200 PowerPak only).
(a) Adjust PowerPak pressure valve:
(1) Squeeze trigger on puller unit
to activate PowerPak.
(2) If pressure does not reach
6,000 psi (41.37MPa), loosen
lockring and turn hydraulic
pressure control clockwise
until pressure reaches 6,000
psi (41.37MPa).
(3) Tighten lockring to secure
available shop air.
Figure 5.0-7
Trigger Response Valves