-16-
SECTION 4 : POST INSTALLATION INSPECTION
[ 1 ] ARM ASSEMBLY
1. Incorrect leveling of the wall plate and wall bracket can cause arm drift. First, check leveling
with horizontal arm in position
#1
. (
Fig.4-1
) If not correct, bracket must be adjusted by
placing shims behind the wall plate.
IMPORTANT :
If the end of the horizontal arm shown in position
#1
is pitched below level, then the tube head
will drift away from the wall. If the end of the horizontal arm in position
#1
is pitched above
level, then the arm will require only minimum adjustment of the brake screw. (
Fig.3-13
)
2. Check leveling in position
#2
.
)
f not correct,
adjust
Horizontal Arm as follows : (
Fig.4-1
)
a. Slightly loosen two top mounting bolts for arm
mounting bracket.
b. Shift the bracket left or right until the arms are
accurately leveled.
c. Move the horizontal arm to position
# 1
.
d. Fully tighten two top mounting bolts.
e. Fully tighten bottom mounting bolt.
NOTE :
Slight tendencies to drift can be corrected
by tightening brake screw in horizontal arm.
Do not tighten beyond what is required to
prevent drift.
[
2 ] BALANCE ARM TENSION ADJUSTMENT
1. Place the balance arm assembly into position.
2. If either balance arm drifts higher or lower from
the set position, remove the spring adjuster cover
and adjust the balance arm spring tension with
the balance arm wrench
SUPPLIED
. (
Fig.4-2
)
[ 3 ] HEAD POSITIONING
A. Place head into position.
B. If head drifts from the set position, adjust the
BRAKE
screws according to the following
procedures.
(
Fig.4-3
)
1. Loosen the yoke side cap screw (ø3 x 8mm
tapping screw) and remove the yoke side cap.
2. Adjust the six brake screws using a screw driver.
3. After adjustment, re
AT
tach the yoke side cap and screw.
Fig.4-1
Horizontal Arm Adjustment
M
a
ts
M
a
ts
M
ats
Horizontal
Arm
Level
Level
Top Mounting
Bolt
Bottom Mounting
Bolt
#1
#2
Fig.4-2
Balance Arm Tension Adjustment
Balance
Arm
Balance Arm
Wrench
Spring Adjuster
Cover
Loosen
Tighten
Fig.4-3
Head Positioning
M
a
ts
M
a
ts
M
a
ts
M
a
ts
M
a
ts
M
a
ts
Yoke
Brake Screw
Yoke Side Cap
Yoke Side
Cap Screw
Tighten
Loosen
Summary of Contents for PHOT-X IIs 505
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