3.2 Separating and Mating Stair Sections
3.2.1 Separating Stair Sections
1. Remove stairs from truck as outlined in preceding paragraphs.
2. Using a hoist, raise lower end of main section to approximately four feet
above floor level.
3. Roll an open-end work table under stair and position with one end as
close as possible to the underside of the top platform.
4. Lower platform end of stair onto table so that notches in safety rack will
rest solidly when stair is fully lowered.
5. Lower the lower end of stair onto the table. Remove the hoist cable and
pipe from top platform.
6. Place a table at lower end of main section.
7. Roll tables apart to extend adjustable section about ten inches. Remove
clevis pin from upper end of hydraulic cylinder.
8. Disconnect tread light cable at splice on underside of adjustable section.
9. Roll table holding the adjustable section away from main section while
simultaneously rolling a second table under main section.
IMPORTANT!
To prevent main section from dropping onto table when
adjustable section is pulled clear, main section should be blocked up just
before adjustable section channels pass centerline of upper wheels.
3.2.2 Mating Stair Sections
NOTICE!
Before mating adjustable section to main section, make sure that the
channel tracks are clean and free of any foreign matter.
1. Apply a thin coat of all-purpose grease (Valvoline X-ALL MP grease or
equivalent) approximately two inches wide down center of inside of each
channel for entire length. Make sure that steel wheels on main section
turn freely and are clean and lubricated.
2. If not already done, install lift pins in handrail lower attach angle on main
section and slip on rig hoisting sling.
3. Make sure that upper end of main section has sufficient clearance from
work table to allow mating of adjustable section.
4. Roll table with adjustable section into position with main section and slip
the adjustable section channels over upper wheels on main section. Take
care that wiring is kept clear while mating sections.
CHAPTER 2 MAINTENANCE
SEPTEMBER 30, 2008
3 REMOVAL AND INSTALLATION
PAGE 3
Truck Mounted Passenger Stair TMPS-200
Manual No. 307559
