Demco 6332 User manual

MIN. MACHINE SURFACE 250
BREAK ALL SHARP EDGES BEND AND DRAFT 1°
THE DRAWING AND ALL INFORMATION
THERE ON ARE THE PROPERTY OF
77.83
DESCRIPTION
UNLESS OTHERWISE
SPECIFIEDALL DIMENSIONS
ARE IN INCHES
TOLERANCES
4010 320TH STREET BOYDEN, IOWA 51234
THIRD ANGLE
PROJECTION
.X = .060 .XXX = .010 NON-MACHINED
.XX = .030 .XXX = .005 MACHINED
*6332*
_
REV
6332
DRAWING. NO.
GM UMS SIDE RAIL KIT
2 OF 2
SHEET
1:6
SCALE
276.18
VOLUME
WEIGHT
08/13/19
TMD
APPOV. BY DATE
08/12/19
TMD
DATE DRAWN BY
HJ26332, Rev 0
08/19
5TH WHEEL SIDE RAIL ASSEMBLIES
6332 Chevrolet/GMC UMS Side Rail

Page 2 HJ26332
Torque figures indicated are valid for non-greased
or non-oiled threads and heads unless otherwise
specified. Therefore, do not grease or oil bolts
or capscrews unless otherwise specified in this
manual. When using locking elements, increase
torque values by 5%.
* GRADE or CLASS value for bolts and capscrews
are identified by their head markings.
Torque Specifications
BOLT TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAP-
SCREWS.
Tighten all bolts to torques specified in chart unless otherwise
noted. Check tightness of bolts periodically, using bolt chart as
guide. Replace hardware with same grade bolt.
NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts
are used throughout assembly of equipment.
WARRANTY POLICY, OPERATOR MANUALS, PARTS MANUALS & REGISTRATION
Go online to www.demco-products.com to review Demco warranty policies, operator manuals and register your Demco
product.
INTRODUCTION
Bolt Torque for Standard bolts *
GRADE 2 GRADE 5 GRADE 8
“A”lb-ft (N.m) lb-ft (N.m) lb-ft (N.m)
1/4”6 (8) 9 (12) 12 (16)
5/16”10 (13) 18 (25) 25 (35)
3/8”20 (27) 30 (40) 45 (60)
7/16”30 (40) 50 (70) 80 (110)
1/2”45 (60) 75 (100) 115 (155)
9/16”70 (95) 115 (155) 165 (220)
5/8”95 (130) 150 (200) 225 (300)
3/4”165 (225) 290 (390) 400 (540)
7/8”170 (230) 420 (570) 650 (880)
1”225 (300) 630 (850) 970 (1310)
Bolt Torque for Metric bolts *
CLASS 8.8 CLASS 9.8 CLASS 10.9
“A” lb-ft (N.m) lb-ft (N.m) lb-ft (N.m)
6 9 (13) 10 (14) 13 (17)
7 15 (21) 18 (24) 21 (29)
8 23 (31) 25 (34) 31 (42)
10 45 (61) 50 (68) 61 (83)
12 78 (106) 88 (118) 106 (144)
14 125 (169) 140 (189) 170 (230)
16 194 (263) 216 (293) 263 (357)
18 268 (363) -- -- 364 (493)
20 378 (513) -- -- 515 (689)
22 516 (699) -- -- 702 (952)
24 654 (886) -- -- 890 (1206)

HJ26332 Page 3
6332 UMS Side Rail Assembly Instructions
1. Place the side rail plates into the base rail holes in truck box.
2. Loosely bolt the saddle bracket (6331) to the side rails using the 1/2” x 1 1/2” bolts, and nylon
lock nuts provided in the 6332 bolt package.
3. Loosely bolt the cross braces to the side rails using only 1/2” x 1 1/2” bolts and nylon lock nuts.
4. Tighten all the bolts.
5. Unlock and remove the hitch assembly from the base rails and put to the side for later.
IMPORTANT NOTE: Apply a little grease or lubricant to the part of the pins that insert into the
base rails to help maintain smooth operation and rotation of pins and to protect from the elements.
Turn the pins occasionally to prevent them from seizing.
Drawing #1
Apply grease or lubricant
Unlocked
Locked
To lock hitch in truck, turn lock han-
dles in and install safety lock pins
To unlock hitch from truck, remove
safety lock pins and turn lock handles
straight out.
INSTALLATION

6
4
3
11
8
2
1
10
10
13
7
9
12
5
ITEM PART # DESCRIPTION QTY
1 00173 NUT, HEX, .50NC CENTER PUNCH
4
2 02384 .50 X 14GA MACHINE WASHER
4
3 07225 SPLIT RING
4
4 14262-76 UMS SIDE RAIL BRACE
2
5 14342-95 CLEVIS SAFETY PIN
4
6 14350 HAIR PIN, .093 WIRE X 1.63 OL
4
7 14412-95 UMS LOCK PIN ASSEMBLY, REESE
4
8 14413-95 LOCKING TAB
4
9 14423 WASHER SHIM .875 ID X .030 THK
8
10 14462-76 SIDE RAIL
2
11 16589 BOLT, .50NC X 1.50 GR5 HEX FLANGE
20
12 16590 NUT, .50NC LOCK NY. INSERT FLANGE
20
13 16849 GM UMS 21K BRACE 2
MIN. MACHINE SURFACE 250
BREAK ALL SHARP EDGES BEND AND DRAFT 1°
THE DRAWING AND ALL INFORMATION
THERE ON ARE THE PROPERTY OF
77.83
DESCRIPTION
UNLESS OTHERWISE
SPECIFIEDALL DIMENSIONS
ARE IN INCHES
TOLERANCES
4010 320TH STREET BOYDEN, IOWA 51234
THIRD ANGLE
PROJECTION
.X = .060 .XXX = .010 NON-MACHINED
.XX = .030 .XXX = .005 MACHINED
*6332*
_
REV
6332
DRAWING. NO.
GM UMS SIDE RAIL KIT
1 OF 2
SHEET
1:6
SCALE
276.18
VOLUME
WEIGHT
08/13/19
TMD
APPOV. BY DATE
08/12/19
TMD
DATE DRAWN BY
ITEM PART # QTY DESCRIPTION
100173 4 NUT, HEX, .50NC CENTER PUNCH
202384 4.50 X 14GA MACHINE WASHER
307225 4 SPLIT RING
414262-76 2 UMS SIDE RAIL BRACE
514342-95 4 CLEVIS SAFETY PIN
614350 4 HAIR PIN, .093 WIRE X 1.63 OL
714412-95 4 UMS LOCK PIN ASSEMBLY, REESE
814413-95 4LOCKING TAB
914423 8 WASHER SHIM .875 ID X .030 THK
10 14462-76 2 SIDE RAIL
11 16589 20 BOLT, .50NC X 1.50 GR5 HEX FLANGE
12 16590 20 NUT, .50NC LOCK NY. INSERT FLANGE
13 16849-76 2 GM UMS 21K BRACE
Please order replacement parts by PART NO. and DESCRIPTION.