Fig. 15 — Removing Holddown Bracket and Adjustment of Isolator Spring,
Airfoil and Forward-Curved Fans
Fig. 17 — External Vibration Isolators —
Floor-Mounted Units
PLAN VIEW
HOLDDOWN BRACKET SCREW LOCATIONS
BOTTOM PANEL OR DOUBLE WALL
SHEET METAL SCREWS
LOCKNUT
NUT
ISOLATOR
SPRING, REF
J-BOLT (REMOVE
COMPLETELY)
SHEET METAL
SCREWS
ADJUSTABLE STEM
MOTOR BASE
DOOR FRAME
AND SIDE
PANEL(S)
Fig. 16 — Removing J-Bolt and Adjustment
of Isolator Spring, Airfoil and
Forward-Curved Fans — Sizes 32-92
33