Low/Empty Limit Switch Replacement - Graco UniDrum C59784 Instructions And Parts List

Ram Assembly Service
Low/Empty Limit Switch
Replacement
During operation, keep hands and fingers away from
limit switches to reduce the risk of pinching or
amputating hands or fingers.
To replace the Low/Empty Limit Switch, perform the
following steps:
1. Perform the System Shutdown procedure provided
by the integrator at the applicable Supply Unit (LH
or RH).
All electrical wiring must be done by a qualified
electrician and comply with all local codes and
regulations.
Installing and servicing this equipment requires
access to parts which could cause an electric shock
or other serious injury. Have only qualified
electricians access the control assembly.
Actuator
F . 18
IG
34
2. Shut off power to the Pneumatic Logic Panel (G).
NOTE: When raising and lowering the Follower Plate
(D), make sure the unit is unobstructed overhead to
avoid interference with other objects.
Switch Removal
3. Disconnect the air tubing from the switch. Note the
tube and fitting relationship to ensure they are
reconnected correctly.
4. Mark the surface on the ram limit bracket using a
felt-tipped pen to ensure that the new lower limit
switch is installed in the same spot.
5. Measure the distance from the mounting bracket
(306) to the outer diameter of the limit switch roller
to ensure that the new roller is installed in the same
position.
6. Remove the fasteners holding the switch to the limit
bracket (306). See F
Limit Switch
. 18.
IG
309169ZAF