beautypg.com

Esting, Chedule, Aintenance – Wood’s Powr-Grip EO1DCB User Manual

Page 9: Unction

background image

Rev 10.0/9-13

7

EO1DCB: #35191AFT

Infrequent Use

If a DC Vacuum Back-Up System is used less than 1 day in a 2-week period, perform the Periodic

Inspection

each time before using the Back-Up System

.

T

ESTING

S

CHEDULE

Perform these tests when installing the DC Vacuum Back-Up System

initially

and

each time

following a repair or modification

. Correct any deficiency and retest before using the Back-Up

System.
• Perform a vacuum test as directed in the lifter's instruction manual.
• Perform the B

ATTERY

T

EST

and B

ATTERY

C

HARGER

T

EST

to follow.

• Perform the B

ACK

-U

P

F

UNCTION

T

EST

to follow.


Note: See MAINTENANCE topics to follow for additional directions about inspecting and testing

specific Back-Up System components.

M

AINTENANCE

S

CHEDULE

Although the DC Vacuum Back-Up System does not require maintenance on a routine basis,

maintenance must be performed whenever a deficiency is indicated by routine inspections or
tests. Any maintenance warranted must be performed before resuming normal use of the Back-

Up System.

B

ACK

-U

P

F

UNCTION

T

EST

Test the back-up function of the DC Vacuum Back-Up System routinely, as directed in the

preceding I

NSPECTION

and T

ESTING

S

CHEDULES

.

1) Attach the vacuum lifter to a test surface following the lifter’s operating instructions.

1

2) While keeping the Back-Up System activated (see OPERATION: To Use the Back-Up System),

disconnect the power source to the lifter’s primary vacuum generating system.

3) Intentionally create a leak in the primary vacuum system (eg, break the seal between one or

more vacuum pads and the test surface).

4) Monitor the lifter's vacuum gauge: The Back-Up System’s vacuum pump should engage

before vacuum decreases to a level that is lower than the minimum level specified for the
lifter's load capacity (consult lifter specifications).

If the Back-Up System does not function correctly, adjust the vacuum switch as directed in the

V

ACUUM

S

WITCH

A

DJUSTMENT

to follow. If the Back-Up System still fails to function normally,

correct any deficiency in the Back-Up System before resuming normal use. Contact Wood’s
Powr-Grip or an authorized dealer for assistance.

1

Any test material used must be fully and independently supported, and capable of bearing the lifter’s weight. Do not use the

lifter to lift the test material during the test.