Demco 6040 User manual
HJ26040, Rev 3
07/20
5TH WHEEL SIDE RAIL ASSEMBLIES
#6040 Reese UMS Side Rail
Page 2 HJ26040
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
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.
BOLT TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAPSCREWS.
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.
TORQUE SPECIFICATION
Bolt Torque for Standard bolts *
“A” GRADE 2 GRADE 5 GRADE 8
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 *
“A” CLASS 8.8 CLASS 9.8 CLASS 10.9
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)
HJ26040 Page 3
6040 UMS Side Rail Assembly Instructions
Place the side rail plates into the base rail holes in truck box.1.
Loosely bolt the saddle bracket (5990) to the side rails using the 1/2” x 1 1/2” bolts, flat washers,2.
and lock nuts provided in the 6040 bolt package.
Loosely bolt the cross braces to the side rails using only 1/2” x 1 1/2” bolts and lock nuts (no flat3.
washers). NOTE: A flat washer under the head of the bolts would prevent the locking pins from
pivoting around far enough to allow the pins to release from the base rails.
Tighten all the bolts.4.
Unlock and remove the hitch assembly from the base rails and put to the side for later.5.
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.
INSTRUCTIONS
,7(0
3$57 '(6&5,37,21
47<
187+(;1&&(17(5381&+
;*$0$&+,1(:$6+(5
63/,75,1*
8066,'(5$,/%5$&(
&/(9,66$)(7<3,1
+$,53,1:,5(;2/
806.%5$&(
806/2&.3,1$66(0%/<5((6(
/2&.,1*7$%
:$6+(56+,0,';7+.
6,'(5$,/
%2/71&;*5+(;)/$1*(
1871&/2&.1<,16(57)/$1*(
5(9
(&1
'$7(
')70
$
-.
%
-.
0,10$&+,1(685)$&(
%5($.$//6+$53('*(6%(1'$1''5$)7
7+('5$:,1*$1'$//,1)250$7,21
7+(5(21$5(7+(3523(57<2)
'(6&5,37,21
81/(6627+(5:,6(
63(&,),('$//',0(16,216
$5(,1,1&+(6
72/(5$1&(6
7+675((7%2<'(1,2:$
7+,5'$1*/(
352-(&7,21
;
;;;
1210$&+,1('
;;
;;;
0$&+,1('
%
5(9
'5$:,1*12
8066,'(5$,/.,7
2)
6+((7
6&$/(
92/80(
:(,*+7
5(
$3329%<
'$7(
-.
'$7(
'5$:1%<
ITEM PART # DESCRIPTION QTY
100173 NUT, HEX, .50NC CENTER PUNCH 4
202384 .50 X 14GA MACHINE WASHER 4
307225 SPLIT RING 4
414262-76 UMS SIDE RAIL BRACE 2
514342-95 CLEVIS SAFETY PIN 4
614350 HAIR PIN, .093 WIRE X 1.63 OL 4
714352-76 UMS 21K BRACE 2
814412-95 UMS LOCK PIN ASSEMBLY, REESE 4
914413-95 LOCKING TAB 4
10 14423 WASHER SHIM .875 ID X .030 THK 8
11 14462-76 SIDE RAIL 2
12 16589 BOLT, .50NC X 1.50 GR5 HEX FLANGE 20
13 16590 NUT, .50NC LOCK NY. INSERT FLANGE 20
Please order replacement parts by PART NO. and DESCRIPTION
Table of contents
Other Demco Automobile Accessories manuals
Demco
Demco Hijacker 5998 Ultra Slide User manual
Demco
Demco Hijacker 6040 User manual
Demco
Demco Aluminator User manual
Demco
Demco 6175 User manual
Demco
Demco Tow-It 2 User manual
Demco
Demco Dominator User manual
Demco
Demco KAR KADDY 3 User manual
Demco
Demco 6141 User manual
Demco
Demco SENTRY DEFLECTOR User manual
Demco
Demco Stay-In-Play Duo User manual
