MST Installation Instructions
Installation Instructions [email protected] +1(909) 591-8431 www.alvaradomfg.com
Page 31
Lock Arms and Bolts (Figure 34)
If the lock arm does not move freely, or is loose, detach the
return spring from the lock arm and use a 5/16" Allen wrench to
remove the lock arm bolt. Use DuPont Teflon Non-Stick Dry-Film
Lubricant to lubricate the bushings on the top and bottom side
of the lock arm. Apply blue Loctite thread locking compound to
the lock arm mounting bolt. Tighten the bolt to a torque rating of
35 ft-lb. and check the lock arm for action. The lock arm should
move freely, except for the pressure of the return spring.
If the lock arm mounting bolt is loose, follow the directions
above, ensuring that blue Loctite thread locking compound is
applied to the lock arm mounting bolt threads before re-installing
the lock arm mounting bolt. After tightening the bolt the lock arm
should move freely, except for the pressure of the return spring.
Fig. 34
Lock Arm
Lubrication
Items/Points
of Contact
Maintenance
Lubricant
Inspect
Every...
Replace
Every...
Lock Arms
and Bolts
Check the lock arm(s) and the lock arm bolt(s). If the lock arm does not move
freely, clean and oil the lock arm(s) and bolt(s).
If the lock arm bolt is loose, apply a thread locking compound such as Blue
Loctite to the threads, tighten and re-test. The lock arm should move freely,
except for the pressure of the return spring.
DuPont
Teflon
Non-Stick
Dry-Film
Lubricant
6 Months As
required
Springs
Inspect and replace worn or damaged springs. Lubricate spring contact
points using
DuPont Teflon Non-Stick Dry-Film Lubricant
lubricant with a tube
extension applicator.
NOTE
: Use only Alvarado springs and only the springs designated for the
location and use purpose. Turnstile springs are not interchangeable and should
be used in designated locations only.
DuPont
Teflon
Non-Stick
Dry-Film
Lubricant
6 Months 1 years
Main Cam &
Shaft
Bearings
Lubricate the two grease fittings on the upper and lower top channel bearings
using the recommended grease and a grease gun.
MolyKote
G-0010
Multipurpose
Grease
6 Months As
required
Solenoids
Clean the solenoid plunger and solenoid cavity area using alcohol wipes and
alcohol moistened Q-tips. Apply a light coating of
DuPont Teflon Non-Stick Dry-
Film Lubricant on the solenoid plunger.
Alcohol /
DuPont
6 Months 2 years
Optical
Sensors
Clean & inspect the alignment of the optical sensors. To clean, an alcohol
moistened Q-tip works well. The cam tag should rotate freely between the
sensors and should travel at approximately ¾ of the depth of the sensors.
Loosen and adjust using the sensor mounting screws.
None
6 Months As
required
Electrical
Wiring
Inspect all electrical wires and contacts for exposure to metal parts that may
lead to a short.
None
6 Months As
required
Self-Centering
Mechanism
Clean and lubricate the two slide rods using DuPont Teflon Non-Stick Dry-Film
Lubricant with a tube extension applicator.
DuPont
Teflon
Non-Stick
Dry-Film
Lubricant
6 Months As
required
It is recommended that the following lubricants be used when lubricating the MST turnstile.
Dow Corning
MolyKote G-0010 Multipurpose Grease
(-20° to +300°)
DuPont
Teflon Non-Stick Dry-Film Lubricant (Bottle)
(-100° to +480°)
NOTE
For installations in extreme cold locations, we recommend using Molykote 33 Extreme Application Grease
(-100° to +400°) in lieu of the MolyKote G-0010.
Lock Arm
Mounting
Bolt and
Bushings
