18
DIFFICULTY IN RAISING BACKSTOP TO THE
PLAYING POSITION (REFER TO DETAIL "J")
1.
Loosen (turn clockwise) the two jam nuts (A)
approximately six turns.
2.
Loosen (turn counterclockwise) the two jam nuts (B)
approximately one turn.
3.
Loosen (turn clockwise) the two jam nuts (C) no more
than two turns.
4.
Carefully raise backstop to the playing position and check
static position (refer to Detail "I" on page 17). Should it
be necessary to tighten springs further, carefully raise
backstop and lock it in the up position before proceeding.
5.
Repeat steps No. 3 & 4 above until folding action of
backstop functions properly.
6.
Re-tighten jam nuts (A & B) securely to lock jam nut (C)
in position after final adjustment has been made.
DIFFICULTY IN LOWERING BACKSTOP TO THE
TRANSPORT / STORAGE POSITION (REFER TO
DETAIL "J")
1.
Loosen (turn clockwise) the two jam nuts (A)
approximately one turn.
2.
Loosen (turn counterclockwise) the two jam nuts (B)
approximately six turns.
3.
Loosen (turn clockwise) the two jam nuts (C) no more
than two turns.
4.
Carefully raise and lower backstop and check static
position (refer to Detail "I" on page 17). Should it be
necessary to loosen springs further, carefully raise
backstop and lock it in the up position before proceeding.
5.
Repeat steps No. 3 & 4 above until folding action of
backstop functions properly.
6.
Re-tighten jam nuts (A & B) securely to lock jam nut (C)
in position after final adjustment has been made.
Detail "J"
B
C
A
B
C
A
TENSION
SPRINGS
TENSION STUDS (2)
NOTE - ADJUST TENSION STUDS EQUALLY
SO THAT TENSION BAR IS PARALLEL TO
END OF BASE FRAME. TENSION ON ALL
SPRINGS MUST BE EQUAL.
COUNTERCLOCKWISE
CLOCKWISE
TENSION LEVERS ON
FRONT VERTICAL SUPPORT
