ED1050 KITS
EDCK1 & EDCK2
INSTALLATION INSTRUCTIONS
1050LB CAPACITY
PURPOSE
To provide instructions for installing the ED1050 Kit. The ED1050 kit provides a method to increase the capacity
of the ED525 hoist to 1050 pounds by converting the hoist from single fall to double fall.
SCOPE
WARNING
The ED1050 kit can only be installed on the ED525S and DS model hoists. It cannot be
installed on an ED525 with an ET525 Mini Trolley. For trolley-mounted applications the hoist must be mounted on
an appropriate capacity push or geared trolley. Reference the Manual Trolley, TF2/TS2 Series, Owner’s Manual
for installation instructions.
CAUTION
Hoist lift and lifting/lowering speed are affected by installing the ED1050 kit. The lift is halved
(approximately) by installing the double fall kit, therefore load chain length must be increased accordingly.
Further, the chain container size must be increased to accommodate the longer load chain. Do not exceed the
maximum capacity of the chain container. Lift/lowering speeds are reduced by half to 22 ft/min for the single
speed hoist and 22/6 ft/min for the dual speed hoist.
ED1050 KIT INSTALLATION
Before installing ED1050 kit, reference the parts list (page 9) to confirm that all the parts are in the kit.
DANGER
Before proceeding, ensure that the electrical supply for the hoist has been de-
energized (disconnected). Lock out and tag out in accordance with ANSI Z244.1 “Personnel Protection -
Lockout/Tagout of Energy Sources”.
1. ED525 Hoist Disassembly
1.1 Remove the load chain stopper.
1.2 Remove the load chain and bottom hook.
1.3 Remove chain container (if required).
1.4 Remove top hook assembly.
1.5 Remove the hoist nameplate.
1.6 Remove the motor nameplate.
2. ED1050 Hoist Assembly
2.1 Install the Connection Yoke Complete Set (Figure 5).
2.2 Temporarily connect power to the hoist. Invert hoist so chain guide is at the top of the hoist. Insert chain
into chain guide on the load side (side away from chain container mounting point). Be sure to keep
welds of the vertical links oriented away from load sheave. Press the UP button and make sure chain
feeds though the chain guide smoothly. If the chain jams and the friction clutch slips, STOP
OPERATION. Press DOWN button and remove chain from unit. Re-insert chain until chain moves
though the chain guide smoothly.
2.3 Install the Bottom Hook Complete Set (Figure 23). Include the chain spring (Figure 37), washer (Figure
38) and cushion rubber (from ED525) on the load side of the load chain. Making sure there is no twist in
the load chain attach the chain to the joint yoke (Fig. 15) with chain pin (Fig. 20).
GENERAL USE
EDOC0321, REV 00
9/28/05
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ED1050 KITS
EDCK1 & EDCK2
INSTALLATION INSTRUCTIONS
1050LB CAPACITY
HHI ED1050 CONVERSION KIT PART NUMBERS
Qty Per
Hoist
Fig. No.
Part Number
Part Name
5
E3DBX48S1470
E3DBX48S6460
CF071005
Connection yoke complete set
Top hook assembly
Hook Latch assembly
Connection yoke
Top Pin, L
1
1
1
1
1
1
1
1
1
6
7
8
E3DBX48S9470
ES006005L
9
10
11
15
16
L3183008
Slotted nut
9009403
Split pin
E3DBX48S9580
E3DBX48S9592
Joint yoke
Protection pad
17
18
19
20
21
22
J1AG25003535
9012510
Truss head machine screw
Washer
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
1
1
2
1
1
9098503
U nut
E2D041125
E2D049125
9009402
Chain pin
Slotted nut
Split pin
23
E3DHX48S1480
E3DBX48S2480
Bottom hook complete set
Bottom yoke assembly
Hook latch assembly
Bottom yoke assembly
Bottom yoke
24
25 ER1BS9002
26
E3DBX48S2485
27 E3DBX48S9485
28 9093307
29 9012709
30 9093420
E3DBX48S6489
E3DBX48S6487
ES026003
Bolt
Spring lock washer
Nut
31
32
33
34
35
36
Bottom shaft assembly
Idle sheave assembly
Thrust collar A
Hook stopper
ES027003
ES022003
Thrust bearing
Name plate C
E3DBX48S9597
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ED1050 KITS
EDCK1 & EDCK2
INSTALLATION INSTRUCTIONS
1050LB CAPACITY
HHI ED1050 CONVERSION KIT PART NUMBERS – CONTINUED
Qty Per
Hoist
Fig. No.
Part Number
Part Name
Chain spring
37
38
43
E3DBX48S9590
E3DBX489591
E2D1835125
E2D854125
1
1
1
1
1
1
1
1
Washer
Chain container
44
45
46
Socket bolt BP
E2D853125
U nut
9009402
Split pin
49
50
E3DBX48S9599
E3DHX48S9802
Warning Seal E (Finger protection)
Nameplate M (Motor Nameplate)
HHI ED1050 NAMEPLATE B PART NUMBERS
Qty Per
Hoist
Fig. No.
Part Number
Part Name
E3DHX48S9801
E3DHX48R9801
Name plate B, Single Speed
Name plate B, Dual Speed
1
1
47
END
GENERAL USE
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9/28/05
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