Umbrella Tool Changer - Guide Pin and Trap Door - Replacement

Applies to machines built from: 
January, 1989

VMC - Umbrella Tool Changer - Guide Pin and Trap Door - Replacement

This procedure tells you how to replace the guide pin [1] and trap door [2] on a umbrella tool changer.

Parts Included

OPTIONAL
25-0466
QTY: 1
BRACKET, DOOR OPENER
OPTIONAL
26-7239
QTY: 3
SPACER, TOOL CHANGER RING
OPTIONAL
22-2065
QTY: 1
PIN, LOCATING
OPTIONAL
22-7163
QTY: 3
RIDER, TRAP DOOR

Tools Required

Mobil 460 Grease
Bottle Jack

Step 1

Remove all tools from the tool changer. Put wooden blocks on the table. Put a bottle jack on the wooden blocks.

Jog the table below the center of the carousel plate.

Support the carousel plate with the bottle jack.

Push POWER OFF.

Remove the (6) SHCS from the carousel plate. With a second person remove the carousel plate.

Raise the bottle jack up to support the weight of the bearing housing for the star assembly.

Step 2

Remove the cover panel [1]. Remove the vertical axle nylon nut [2] and the flat washer [3]. Remove the guide pin assembly [4] from the trap door cover, behind the carriage assembly. Replace the guide pin assembly [4] if it is damaged.

Lower the bearing housing for the star assembly [5] and remove it from the machine.

Step 3

Remove the trap door, the (2) nylon washers [1] from the top and bottom of the trap door, and the (3) plastic riders [2] from the bottom of the trap door. Replace the washers [1] and the riders [2] if they are damaged.

Apply Mobil 460 grease to the nylon washers [1], plastic riders [2], and the trap door guide slot [3]. Install the washers [1], riders [2], and the new trap door.

Install the bearing housing for the star assembly [4]. Install the vertical axle nylon nut and flat washer [5] in the carriage assembly. Install the cover panel [6]. Apply Mobil 460 grease the tool slots [7] on the star assembly.

Install the guide pin assembly [8].

Step 4

With the aid of a second person, put the carousel plate [2] and the cover plate [1] onto the bottle jack. While the second person balances the carousel plate [2] on the jack, do these steps:

  • Lift the carousel plate [2] to the threaded holes. Align the dowel pin [3] to the hole in the bearing housing.
  • Install the (6) 5/16-18 x 1" Socket Head Cap Screws (SHCS) [4].

Torque the screws to 25 ft-lbs.

Conclusion

Do the VMC - Umbrella Tool Changer to Spindle - Alignment procedure.

Test the umbrella tool changer for correct operation.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.

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