Table of Contents
Advertisement
3. Make sure pumping unit valve stem is in AUTOMATIC and test switch is ON.
4. Run the car at the slow or inspect speed and wipe down the ropes to remove any dirt and/or
excess oil and grease from top to bottom. Return car to top floor.
5. Jump terminals RG5 to RG6 and run the empty car in slow speed in the direction that will
pull the ropes thru the "ROPE GRIPPER
turn the test switch OFF. The "ROPE GRIPPER
and ropes will begin to wear grooves in the linings.
6. As the linings wear-in, the rotating shaft will move up the cam slot and around the corner(s)
of the cam noted below (Figure 6), and the connecting arms will move up the side wall and
begin to match or line up with the wear-in line (see Figure 5) marked on the side wall.
Note: #624, #625, #626 and #626SPL have two corners. These grippers are not worn-
in until the rotating shaft goes past the second corner of the cam as noted below (see
Figure 6) and the connecting arm meets or covers the line marked on the side wall.
7. Note that it may take several car-runs to complete lining wear-in.
8. Once the rotating shaft has turned the corner(s) and the wear-in line is matched or covered,
stop the car and remove the jumper from RG5 to RG6.
9. If the lining wear-in is not completed after the grooves in the linings have reached
approximately 1/16" deep, spacer shims (Figure 7) can be moved from between the shaft
support blocks and moveable shoe to the outside of the support block to allow the rotating
shaft to completely turn the corner and move up the cam. Refer to Chart 3 for initial spacer
and shim set-up. Note: Before changing spacers, install security set screws to prevent
unintended "ROPE GRIPPER
and/or damage to the unit.
• The linings will wear, especially after multiple high-speed stops. When gripping moving
ropes, material will be removed from the pads (lining wear) and the rotating shaft will move
towards the upper end of the cam. Near the end of the cam, the excessive wear microswitch
will open and the "ROPE GRIPPER
" (typically DOWN). When the car is up to speed,
®
" activation, which could lead to severe personal injury
®
LINING WEAR & REPLACEMENT
" will not automatically reopen.
®
" will grip the ropes with a light pressure
®
FIGURE 6
BULLETIN 1144
Page 10 of 29
11/12/19
Advertisement
Table of Contents
