Graco 26B772 User manual

3A8499A

Instructions

Uni-Drum Supply

System Safety Kit

Prevents ram from lowering when the safety pins are installed. For professional use only.

Part No. 26B772, 26B774

Important Safety Instructions

Read all warnings and instructions in this

manual and in manual 309028 before

using the equipment. Save all

instructions.

26B772 26B774

Component Identification

2 3A8499A

Component Identification

* Parts included with 26B772 only.

† Parts included with 26B774 only.

FIG. 1: 26B772 Left-Handed

115

101

108

114

105

112,113

111,113,117,115

119

104

118

109

110

119

111

120,121

103

104

122

102

106,107

26B772 Shown

Left-Handed Unit

Ref. Part Description Qty.

101 26B769 BRACKET, cylinder support 4

102 18D250* TUBE, support, outer 2

18D257† TUBE, support, outer 2

103 18D251* TUBE, support, inner 2

18D258† TUBE, support, inner 2

104 18D249* PLATE, base, lock out 2

18D249† PLATE, base, lock out 1

105 133303 STRAP, pipe, 2 in. 4

106 16Y456 PIN, safety, hitch 2

107 15G945 CABLE, lanyard, 24 in. 2

108 15G946 BOLT, U, 1/2 x 8.375 4

109 133306 SCREW, HHC 8

110 123389 SCREW 8

111 101971 WASHER, thrust 32

112 123284 SCREW, HHC 8

113 100133 WASHER, lock, 3/8 24

114 100018 WASHER, lock, spring, 1/2 8

115 113500 ADHESIVE, anaerobic 1

117 100307 NUT, hex 16

118 18D253 PLATE, mounting, u-bolt, 3/8 7

119 18D254 PLATE, mounting, u-bolt, 3/8, thk 1

120 18D252 BRACKET, lock out, unidrum 2

121 113802 SCREW, hex head, flanged 4

122 133305 PIN, clevis 2

123 18D256† PLATE, base, lock out 1

Ref. Part Description Qty.

Installation and Setup

3A8499A 3

Installation and Setup

NOTE: It is recommended to perform steps 1-3 with

equipment positioned on the floor or on an assembly

bench.

1. Attach the outer pipe support (102) to the cylinder

support brackets (101) using the supplied pipe

straps (105), screws (112), and washers (113). The

pin guide hole in the outer support pipe should be

positioned parallel to the cylinder support brackets

to simplify installation. See FIG. 2 for recommended

mounting locations on the pipe. Do not fully tighten

hardware. Keep loose for adjustment. Final torques

to be applied in step 16.

2. Attach the support bracket (120) to the inner support

bar (103) using the pin (122).

3. Slide the inner support bar (103) into the outer pipe

support (102).

Prepare the Uni-Drum

4. Fully lower the ram by setting the RAM POSITION

Switch (A) to LOWER. Leave switch in LOWER

position.

5. Open the door on the Pneumatic Logic Panel (E).

6. Adjust the air pressure to 0 PSI for the RAM DOWN

Air Regulator. Refer to the gauge on the RAM

DOWN Air Regulator and R3 Regulator to verify the

ram has been depressurized. See manual 309028

for instructions on how to adjust the RAM UP and

RAM DOWN Air Regulators.

7. Slowly open the drain cock located on the bottom of

the air cylinders (D).

FIG. 2

101

105

102

112

113

Guide Pin Hole

(20 in.) (12 in.)

FIG. 3

WARNING

To prevent injury from crushing or pinching, always

use at least two people when lifting, moving, or

disconnecting the equipment.

120

103

122

Installation and Setup

4 3A8499A

8. After the air pressure has been relieved, remove the

Ram Down air line (G) running from the top of the

Pneumatic Logic Panel to the ram cross bar.

9. Close the Main Air Inlet on the header (B).

10. Leave the drain cock open and the Ram Down air

line (G) removed until kit installation is complete.

Attach to the Uni-Drum

11. With the ram in the fully lowered position, install the

assembly onto the back Uni-Drum cylinders using

the brackets (101), bolts (108), and washers (114).

Before installing both sets of nuts and washers onto

the top U-bolts, slide the eyelet of the 24 inch

lanyard (107) over one side of the U-bolt to capture

it between the bracket (101) and the washer (114).

See FIG. 8. Assemble to rest on the Uni-Drum base

plate. Orient the outer support pipe approximately

45° from the back Uni-Drum cylinder centerline. Do

not fully tighten hardware. Keep loose for

adjustment. Final torques to be applied in step 16.

12. With the ram still in the fully lowered position, install

the right and left base plates (104) in their

respective corners as shown in FIG. 7. Use the

supplied screws (109, 110), flat washers (111), lock

washers (113), nuts (117), adhesive (115), and

mounting plates (118, 119).

NOTE: Installation of the mounting plates (118, 119) will

require that one of the plates be installed over a bolt

head welded to the upper carriage. One mounting plate

(119) has a counter bore to clear this bolt head, so make

sure that mounting plate (119) is located correctly

before starting the installation.

NOTE: When installing the mounting plates, hand

tightening the bolts is sufficient for this portion of the

installation. Do not overtighten. Final torques will be

applied in step 16.

FIG. 4

FIG. 5

FIG. 6

101 108

114

118

119

Installation and Setup

3A8499A 5

13. Line up the two 3/8 in. mounting holes on the inner

support bracket (120) with the threaded 3/8 in. holes

on the base plates (104).

14. Apply adhesive (115) to the screws (121). Lift the

inner support bar and bracket up to the base plate

and install the screws (121).

15. For the best operation, the inner support bar (103)

must be centered within the outer support bar (102)

to prevent binding. While still hand tightened, slide

the base plates (104) as necessary, and turn the

outer support bar about the Uni-Drum lift cylinders

until centered.

16. Tighten all nuts and bolts to 9-11 ft-lbs.

17. After Installation is complete, close the drain cocks,

make all pneumatic connections and open the Main

Air Inlet to header. See manual 309028 for

instructions on how to adjust the RAM UP and RAM

DOWN Air Regulators.

18. Verify free movement by moving the ram up and

down.

FIG. 7

26B772

Left-Handed Unit

104

26B774

Right-Handed Unit

104

26B772

Right-Handed Unit

26B774

Left-Handed Unit

104

NOTICE

Do not overtighten. The top nuts can potentially bend

the mounting plates, and the U-bolts around the

Uni-Drum lift cylinders can potentially dent or crush

the lift cylinders.

Using the Two Safety Pins

6 3A8499A

Using the Two Safety Pins

1. Turn the RAM POSITION Switch (A) to RAISE, then

press the RAM UP Pushbutton to move the ram to

the fully raised position.

2. To lock ram in the fully raised position, move the

RAM POSITION Switch to the HOLD/NEUTRAL

position and insert both safety hitch pins (106) into

the outer support bars (102) and install both pin lock

clips.

NOTE: Locks that use 1/4 in. shackles can be used in

place of the cotter pins (CP) provided with the safety

hitch pins (106).

3. Once both safety hitch pins (106) are secured, turn

off all air to the system by closing the Main Air

Shutoff Valve on the header (B) and follow your

facility’s pre-established lock-out/tag-out

procedures. See FIG. 4.

4. To place the ram back into operation, verify the

RAM POSITION Switch is still in the

HOLD/NEUTRAL position, and open the Main Air

Shutoff Valve on the header (B).

5. Turn the RAM POSITION Switch (A) to RAISE, then

press the RAM UP Pushbutton to move the ram to

the fully raised position.

6. Remove both safety hitch pins (106).

FIG. 8

106

102

California Proposition 65

3A8499A 7

California Proposition 65

CALIFORNIA RESIDENTS

WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.

All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

Original instructions. This manual contains English. MM 3A8499

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

www.graco.com

Revision A, April 2021

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