U-Line H-841U-20 User manual

1011 IH-841U-20PAGE 1 OF 3
PARTS
ASSEMBLY
Step Ladder
Notched Bushing (4)
Handrail Bracket (2)
(shipped attached
to side of stile)
F. Back Panel (1)
C. Rear Handrail Bar (1)
(shipped under a step
attached with orange ties)
9⁄16" Wrench or Socket (2)
7⁄16" Wrench or Socket
TOOLS NEEDED
WARNING! Assembly of these types of ladders
can be inherently dangerous. Please take all
necessary precautions during the assembly
process. Always use a separate ladder to
finish assembly in high places. Never climb a
ladder that is not completely assembled. Do
not assemble or use a ladder with missing or
damaged parts. Use proper lifting mechanics
when assembling a ladder. Watch for overhead
electrical hazards and obstructions.
STEP 1: FRAME ASSEMBLY
NOTE: DO NOT tighten bolts until instructed to.
NOTE: Back panel (F) has both round and
slotted holes. The round holes are at the bottom,
and the slotted holes are at the top (L1).
1. Place the ladder stile (D) on the floor. Be sure to
assemble on a protective surface so the finish does
not get damaged. (See Figure 1)
Rubber Mallet Safety Glasses
5-7 STEP ROLLING
SAFETY LADDERS
20" AND 30" DEEP TOP STEP
A. Handrail (1)
B. Handrail (1) Opposite
Hardware Kit (1)
(misc. hardware included)
G. Base Panel (1)
D. Stile (1)
H-841U-20, H-841U-30
H-1083U-20, H-1083U-30
H-843U-20, H-843U-30
E. Handrail
Extension Panel (2)
Extension Clamps Set (4)
I. Diagonal Brace (2)
(used only on 30" deep top ladders)

1011 IH-841U-20PAGE 2 OF 3
STEP 1: FRAME ASSEMBLY CONTINUED
2. Using (6) 3⁄8-16 x 1¼" hex head cap screws &
self-locking nuts, bolt the top (slotted holes) of
back panel (F) to the insides of L1. (See Figure 1)
3. Bolt the bottom (round holes) of back panel (F)
to base panel (E) on the insides of L2.
(See Figure 1)
4. Bolt base panel (E) to the insides of L3.
(See Figure 1)
STEP 2: DIAGONAL BRACE ASSEMBLY
Used only on 30" deep top ladders
1. Using 3⁄8-16 x 1¼" hex head cap screws, locate
diagonal brace (I) on the inside of L4 and L2.
(See Figure 1)
2. Start self-locking nuts onto screws.
3. Repeat on other side.
WARNING! Never climb a ladder that is not
completely assembled.
L1
L1
L2
F
L3L4
L3
L3
L1
DOUBLE HOLE
MODEL
DOUBLE HOLE
MODEL
SINGLE HOLE
MODEL
SINGLE HOLE
MODEL
E
I
D
ASSEMBLY CONTINUED
Figure 2
Figure 1
STEP 3: INSTALL HANDRAILS
NOTE: DO NOT tighten bolts until instructed to.
1. With ladder on its side, install side handrail (A) into
rear stile tubes. Use the rubber mallet as needed for
mating parts. (See Figure 2, Step 1)
2. Clamp side handrails outside of stile tubes using
handrail brackets and 3⁄8-16 x 2" hex head
cap
screws and self-locking nuts. (See Figure 2, Step 2)
3. Repeat step 2 with side handrail (B).
C
A, B
E
D
REAR
HANDRAIL
BAR
NOTCHED
BUSHING
HANDRAIL
EXTENSIONS
TUBE CAP
STEP 1 STEP 2STEP 5
REAR STILE
TUBE
STILE
TUBES
HANDRAIL
3/8-16 x 2"
H.H.C.S.
HANDRAIL
EXTENSION SUPPORT
TUBE
3/8-16 x 2"
H.H.C.S.
DEEP TOP
3/8-16
SELF-LOCKING
NUT
3/8-16
SELF-LOCKING
NUT
HANDRAIL
EXTENSION
CLAMPS
HANDRAIL
BRACKET
HANDRAIL
1/4-20 x 2 3/4"
H.H.C.S.
STEP 4
STEP 3

1011 IH-841U-20PAGE 3 OF 3
ASSEMBLY CONTINUED
STEP 4: INSTALL HANDRAIL EXTENSION PANELS
1. Install handrail extension panels (E) into support
tubes located on the side of the 20" or 30" deep top.
(See Figure 2, Step 3)
2. Clamp the handrail extension panels to the side
handrails using handrail extension clamps and
3⁄8-16 x 2" hex head
cap screws and self-locking nuts.
(See Figure 2, Step 4)
STEP 5: INSTALL REAR HANDRAIL BAR
3. Detach rear handrail bar (C) from under a step by
clipping orange ties.
4. Insert notched bushing into each end of rear
handrail bar (C).
5. Position rear handrail bar between mounting holes
of side handrails (A) & (B). Attach using (2) ¼-20 x 2 ¾"
hex head cap screws. (See Figure 2, Step 5)
NOTE: You may now tighten all handrail bolts .
STEP 6: LEVEL LADDER
1. Stand ladder upright on level surface.
2. Activate safelock by stepping on trip bar located in
front of first step.
3. Make sure ladder rests level on the crutch tips and
rubber bumpers.
4. When steps are level, tighten all bolts.
NOTE: DO NOT proceed until ladder is stable.