York YCAL0019, Installation, Operation And Maintenance Manual, Page: 146 / 230

JOHNSON CONTROLS
146
FORM 150.67-NM1
ISSUE DATE: 4/28/2017
SECTION 5 – TECHNICAL DATA
SLRS SEISMIC ISOLATOR INSTALLATION AND ADJUSTMENT
To install and adjust mounts:
1. Supports for mountings must be leveled to instal-
lation's acceptable tolerances.
2. Mountings not subjected to seismic or wind forces
do not require bolting to supports.
3. Mountings subjected to seismic or wind forces
must be bolted or welded in position.
4. If mountings are welded in position, remove low-
er friction pad before welding.
5. Set mountings with top channels held in place by
the lower restraining nuts and limit stops.
6. Place equipment on mountings and secure by
bolting or welding.
7. Hold lower restraining nut in place and turn verti-
cal limit stop bolt counter-clockwise until there is
a 1/8
th
of a gap between the bolt head and the steel
washer.
"D" Tap - 4 Holes unless
otherwise requested
Adjustment
Bolt
Vertical Limit
Stops-Out of
contact during
normal operation
Non-Skid Neoprene Pad-
Pad can be removed if
mounts are welded
into position.
Enclosed
Steel
Housing
Internal
Neoprene
Acoustical
Pad
Lower
Restraining
Nut
Rubber
Snubbing
Collar
MBD -Max
Bolt
Diameter
SHIPPED INSTALLED
A TER AD STMENT
4"
"
LIMIT STOP
BOLT
LO ER
RESTRAININ
BOLTS
LD10568
Units shipped before June 15, 2008
8. Turn adjustment bolt 8 turns on each mount.
9. Take one additional complete turn on each adjust-
ment bolt in sequence until the top plate lifts off
of the lower restraining nuts. Take no additional
turns on that mount. Continue with equal turns on
the other mounts until the top plates lift off of the
lower restraining nuts of all mounts.
10. Hold the limit stop bolt in place and turn the low-
er restraining nut clockwise and tighten it against
the stanchion. Repeat the same procedure on all
mounts.
11. Top plate should remain at a fixed elevation, plus
or minus 1/8
th
of an inch.
FIGURE 40 - SLRS SEISMIC ISOLATOR INSTALLATION AND ADJUSTMENT