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UC3919-3DRW-BK/ UC3919-3DRW-BL/ UC3919-3DRW-LG/ UC3919-3DRW-OR/ UC3919-3DRW-RD

 1 

REV: 

03/01/19

ASSEMBLY INSTRUCTIONS

®

STEP 1: INSTALL CASTERS TO BOTTOM 
TRAY  

(a)    Install 4 casters to the bottom tray (#12).  Two 

locking casters (#13) should be installed on either the 

right or left side, then the two non-locking casters 

(#17) should be installed on the opposite side, see 

drawing for reference.

(b)    Fasten casters to tray with 16pcs bolts 

(#14/15/16), bolts are included.

TOOLS NEEDED: 14mm combination wrench

• Lock lid and drawers before moving. • Apply brake on locking casters anytime cart 
is in place. • Do not pull cart. Push from handle on end to move. • Units can tip 
or fall causing damage or personal injury. • Cart is designed to roll easily on flat 
surfaces and should not be used on  uneven or inclined surfaces. • Do not open 
more than one loaded drawer at a time. • Do not stand on or step in drawers.  
• Keep children away from unit. • Wear gloves when lifting edges. • Failure to heed 
these warnings may result in personal injury and/or property damage.

WARNING

Read and understand all instructions. Failure to follow all instructions listed below, 

may result in electric shock, fire, explosion and/or serious personal injury. It is the 

responsibility of the owner to make sure all personnel read this manual prior to using 

the tool. It is also the responsibility of the tool owner to keep this manual intact and in 

a convenient location for all to see and read. If the manual or product labels are lost or 

not legible, contact Mac Tools for replacements. If the operator is not fluent in English, 

the product and safety instructions shall be read and discussed with the operator in the 

operator's native language by the purchaser/owner or his designee, making sure that 

the operator comprehends its contents.

WARNING: 

Cancer and Reproductive Harm. - 

www.P65Warnings.ca.gov.

SERVICE CART WEIGHT CAPACITY

Maximum Total Net Load  . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 LBS
Top Compartment of Cart  . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 LBS
Bottom Shelf of Cart   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 LBS
3-1/2" Drawers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  100 LBS each  
4-1/2" Drawer   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 LBS each

PLEASE NOTE:

  

Loading cart beyond rated capacity may cause structural 

damage to the cart as well as personal and /or property damage. Please 

educate your customers to the dangers of overloading. Do not attempt to 

push cart with items on the top lid.

WARNING

Fig 1.

UC3919-3DRW-BK/UC3919-3DRW-BL

UC3919-3DRW-LG/UC3919-3DRW-OR

UC3919-3DRW-RD

-BK, -BL, -LG, -OR, -RD

3 DRAWER UTILITY CART

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