JOHNSON CONTROLS
56
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
SECTION 3 - MAINTENANCE
PARAL
LE
L MISALIGNMENT (FIG. 4)
PA
RA
LLEL ALIGNM
EN
T
(FIG. 5)
DR
IVE SIDE (FIG. 1)
DRIVE SIDE
(FIG. 2)
MOTOR BASE MOUNTING HARDWARE
MOTOR
BA
SE
ADJUSTMEN
T
SC
REW
S
(D
RI
VE
SIDE
)
MO
TOR BAS
E
MOTO
R BA
SE
SU
PPORT RAIL
S
MOTO
R
MOTOR BAS
E
ADJUSTMENT SCREWS (OPP
-DRIVE
SI
DE
)
MOTOR BASE MOUNT
IN
G HARD
WA
RE
MOTO
R
MOUNTING/ADJUSTMEN
T
HARD
WA
RE
PLENUM
FA
N
MOTO
R
MOTO
R'
S
SHEAVE
FAN'S SH
EAVE
N
OTES:
1.
TH
E
SHEAVES SHOULD BE CE
NT
ER
ED ON THE SHAFT'S KEYWAY. SHEAVE CAN BE CLOSER
TO TH
E
BEARING,
AS
LO
NG AS THE SHE
AVES HUB IS
ABLE TO FULLY ENGA
GE WITH THE KEY.
2.
CHECK FO
R
PARALLEL
MI
SALIGNMENT BY PLACING A STRAIGHT ED
GE AC
RO
SS THE OUTER FACE OF THE
SHEAVES (FIG. 5). STRAIG
HT EDGE
IS
TO
BE LONG ENOU
GH THAT IT EXTENDS P
AST BOTH SHEAVES.
3.
IF TH
E
SH
EAVES ARE
MI
SALIGNED
(FIG
. 4), LOOSEN
TH
E MOTOR'S MOUNT
ING HARD
WA
RE AND SL
ID
E THE MOTOR
FORWARD (OR BACK) TO BRING THE SHEAVES IN
TO AL
IG
NMEN
T
(F
IG. 5)
, THEN RE-T
IGHTEN HARDWARE.
STRA
IG
HT
ED
GE
NOTE
2
NOTE
3
NO
TE
3
FAN'S BE
ARIN
G
KEYWAY
KEYWA
Y
LD16606
FIGURE 45 -
SOLUTION XT ADJUSTABLE MOTOR BASE (TOP MOUNT)