Savaria Pro-lock 000849 Service manual

Technical Bulletin
Pro-lock maintenance
Part No. 000849, 29-m05-2014 Pro-lock maintenance
Savaria Corporation 2 Walker Drive, Brampton, Ontario, L6T 5E1, Canada Toll free: [phone] Fax: [phone]
Unless otherwise specified, Savaria Corporation accepts no responsibility for changes, labour, or
replacements incurred from this technical bulletin.
Part number 000849
Type Maintenance procedure
Bulletin number 29-m05-2014
Affects Prolift SCL, Prolift HD, PAL
Suggested action Use this bulletin to perform maintenance on the Pro-lock.
Standard notations
The following notations may be used throughout this technical bulletin to emphasize important safety
information, mechanicalconcerns, and other important information. Savaria recommends that you review
and follow all of these messages.
Danger messages indicate an imminently hazardous situation, which, if not avoided, results in death or
serious injury. All danger messages feature a standard ISO safety alert symbol followed by the signal word
Danger in capitalized black lettering on a red background.
Warning messages indicate a potentially hazardous situation, which, if not avoided, could result in death
or serious injury. All warning messages feature a standard ISO safety alert symbol followed by the signal
word Warning in capitalized black lettering on a dark yellow background.
Caution messages indicate a potentially hazardous situation, which, if not avoided, could result in death or
serious injury. All caution messages feature a standard ISO safety alert symbol followed by the signal word
Caution in capitalized black lettering on a yellow background.
Caution messages that do not include the ISO safety alert symbol indicate a potentially hazardous situation
for the machine only, which, if not avoided, could result in damage to the machine. These caution messages
include the signal word Caution in capitalized black lettering on a yellow background.
Note messages provide information, such as reminders, general information about a previous statement,
or additional guidelines that do not fit into the flow of the preceding text. All note messages include the
signal word Note in capitalized white lettering on a blue background.
DANGER
WARNING
CAUTION
CAUTION
NOTE
General
This technical bulletin is available through Savaria and
provides maintenance information for the Pro-lock.
Please contact Savaria for details regarding ordering
information.
For technical support, please call [phone].
Visit our website at: www.savaria.com.
Disclaimer
Failure to follow instructions renders the Limited Warranty
null and void. In addition, any party installing or servicing
the product who deviates from these instructions agrees to
indemnify, save, and hold harmless the manufacturer from
any and all loss, liability, or damage that may occur as a
result of the deviation.
Warnings and hazards
To avoid injury, please ensure that you read and understand
this entire bulletin before performing the procedures.
Do not connect or disconnect any wiring while the power is on.
Failure to comply could result in death or serious injury.
Make sure all power disconnects are turned OFF if performing
any electrical work.
WARNING
ELECTRICAL SHOCK HAZARD
DANGER
TSSA web posted and current as of July 2014. Note: May be subject to revision by Savaria

2
Pro-lock maintenance Part No. 000849, 29-m05-2014
Pro-lock maintenance
Procedure
1 Check that the locks are properly secured, clean, dry
and corrosion free.
2 Check that the beaks and keepers are secure, clean, dry
and in good condition.
3 Check the locks for wear and verify smooth operation.
4 Check that the lock contacts are clean and properly
fixed.
5 Clean the contacts using a lint-free cloth only; do not
use abrasives.
6 Check that the lock contact breaks before the door is
mechanically unlocked.
a. There is a locking tab at the bottom of the lock
plunger (see Figure 1) that prevents the contacts
from mating unless the beak lifts the locking tab.
b. To check this, push the center lock plunger in with a
pencil ensuring the lock contacts DO NOT touch.
NOTE: NEVER grease or lubricate the locking tab.
c. If the contacts do touch with the center plunger
pushed in, then you need to repair or replace the
lock.
7 Check the lock wiring, switches and solenoids for
mechanical damage, security of terminations or signs of
excessive heating.
8 Verify that rattling the doors during motion does not
stop the lift.
9 Check that the additional door closed microswitch
above the door is properly secured, clean, dry and in
good condition.
Pro-lock adjustment
Procedure
1 There are three ways to adjust the lock contacts as
noted below. No other adjustment is authorized or
allowed.
a. There are three nuts holding the lock in place.
Loosen these nuts to move the lock closer to or
farther from the door.
b. The receiver has two bolts holding it in place on the
receiver plate. Loosen these bolts and move the
receiver to the best position.
c. To attain more swipe on the contacts, the receiver
plate can be shimmed out from the door using 1/4”
flat washers.
Figure 1
Pro-lock contacts and locking tab
Lock contacts
Locking tab
Lock plunger
Keeper
Keeper
Locking tab
actuator
Beak into
door
RECEIVER
TSSA web posted and current as of July 2014. Note: May be subject to revision by Savaria

3
Part No. 000849, 29-m05-2014 Pro-lock maintenance
2 With proper adjustment, the contacts should be as shown in Figure 2 below.
Figure 2
Critical Measurements
3 If adjustment cannot be made to meet the measurements shown above, follow these steps (see Figure 3):
a. Inspect the screws (A) holding the contact mounts and ensure they are tight.
b. Inspect the mounts (B) and ensure they are not damaged.
c. Inspect the nuts (C) on the contacts and ensure they have flat and lock washers installed, and that they are tight.
d. Older models may have a clip (instead of nuts) and have soldered wires. Ensure they are tight and the solder
connections are in good repair.
e. Replace the lock if any of these items cannot be corrected without making modification to the lock.
Figure 3
Inspect if measurements are not met
Lock Plunger Not Depressed Lock Plunger Depressed
Approx. 3mm (using a pencil)
4mm - 5mm
C
B
A
TSSA web posted and current as of July 2014. Note: May be subject to revision by Savaria