Procedure to Install the New Autogap
components in ER-1225 and ER825
Brake with inverted Armature Hub
®
P-230-1
819-0376
Installation & Operating Instructions
2
Warner Electric • 800-825-9050 P-230-1
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Kit Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Disassembling Armature/Hub Assembly . . . . . 3
Assembling the New Autogap . . . . . . . . . . . . . 4
Warranty . . . . . . . . . . . . . . . . . . . . . . Back Page
Failure to follow these
instructions may result in product damage, equipment damage, and serious or
fatal injury to personnel.
Introduction
This instruction sheet provides detailed instructions for the replacement of existing autogap
assemblies with new design autogap assemblies
on Warner Electric® ER brakes for MontgomeryKone®
Note: Please review the entire installation procedure prior to starting any work.
Please follow these instructions carefully to ensure proper operation.
Failure to comply with these instructions can
result in damage to property and injury or
even death to personnel.
Applying power to the brake
will release its hold on the escalator and may
allow it to move. To prevent escalator movement and the damage and/or injury that may
result, the escalator must be held in place by
another means.
Keep fingers clear of the air
gap area between the magnet (item 11) and
the armature (item 3) - as the armature will
be pulled sharply toward the magnet after the
gap between them is closed to approximately
1/8 inch. See Figure 1. Injury can result if fingers are pinched between the armature and
magnet.
3
2
11
1
Armature
See Detail A
Hub
Magnet
Taper Lock
Bushing
9
8
10
4
3
5
2
7
6
Follow
Up Cup
Blue
Spring
Retainer
Ring
Pin
Armature
Yellow Spring
Hub
Detent Ring
Detent Cup
Detail A
12 Set Screw
Airgap
Figure 1
3
Warner Electric • 800-825-9050 P-230-1
The kit part number for ER-825 is 5250-101-008
and for ER-1225 is 5252-101-005. The kit
includes the following parts.
Kit Parts List - See Figure 3
(Item Model 825 Model 1225
Name No.) (Qty) (Qty)
Pin & detent assembly 4 & 7 3 4
Detent Cup 6 3 4
Yellow Conical Spring 5 3 4
Red Straight Spring 8 3 4
Follow Up Cup 9 3 4
Retainer Ring 10 3 4
Instruction Manual 1 1
Claim Form 1 1
Tools required (not included)
• 1/4" Hex key wrench for taper lock bushing
set screws – ER-1225.
• 3/16" Hex key wrench for taper lock bushing
set screws – ER-825.
• 5/16" Hex key wrench for pins.
• 7/32" Hex key wrench for mounting screws.
• Tube Grade 242 Loctite.
• Snap ring pliers, external.
• Torque wrench minimum 200 lb.ft. reading
– ER-825.
• Torque wrench minimum 400 lb.ft. reading
– ER-1225.
• 3 steel shims, equal thickness, not less than
1/16", nor greater than 1/8".
• Small hammer (approximately 8 ounce).
• Drift
Disassembling the Armature/Hub
Assembly (See Figure 1)
Do not pry the armature away
from the magnet. If armature is distorted the
entire brake must be replaced.
Note: Steps (1) and (2) are to be performed at
the motor and (3), (4), (5), (6) and (7) are to be
performed on a bench away from the motor.
Note: Make sure power to the brake is turned
off. See Figure 1 for the following seven
steps.
Step 1: Loosen the taper-lock bushing (item1)
on the motor shaft.
To loosen, remove both set screws
(item 12) from the taper lock bushing
(item 1) using a hex key wrench. Insert
one set screw into the previously
vacant hole in the taper lock bushing
and tighten this screw until the bushing is loosened in the hub (item 2). If
the bushing does not loosen, tap on
the hub with a drift and small hammer.
Step 2: Apply power to the brake. The arma-
ture will then spring away from the
magnet. If it does not, check electrical
connections and release voltage per
Montgomery-Kone® instructions.
Remove taper lock bushing (item 1)
and armature assembly (items 2 & 3)
from the motor shaft. Set the bushing
aside. Do not discard the bushing.
Step 3: Remove the retainer rings (item 10)
from pins (item 4). Discard rings.
Step 4: Remove the blue conical springs (item
8). Discard them.
Step 5: Remove the follow-up cups (item 9).
Discard them.
Step 6: Remove the armature (item 3) and set
it aside.
Do not discard.
Loading...