Torklift Hidden Power E Series User manual

IMPORTANT OWNER-OPERATOR INSTALLATION INSTRUCTIONS
Part #A7729
E-Series Hidden Power
REVISED version 3 BY: DK 11/23/15
TECH SUPPORT [phone]

1
Parts Inventory
1x
A7729 Frame Plate
1x
A7729 Battery Tray
1x
Group 24-31 Battery
Box
3x
Hook Brackets
1x
1/4" x 1-3/8” Bail Pin
2x
3/8”-16 x 2-1/2” Grade
5 Hex Bolt
2x
3/8”-16 x 1-1/4” Grade
5 Hex Bolt
2x
3/8”-16 Hex Nut
2x
3/8”-16 Flanged Nylock
Nut
2x
1/2"-13 x 4” Grade 5
Hex Bolt
1x
1/2" -13 x 3-3/4” Hex
Bolt
3x
1/2" -13 Grade 5 Hex
Nut
3x
1/2" Grade 5 SAE
Washer
3x
1/2" Lock Washer

2
4x
1/4" -20 x 3/4” Grade 5
Hex Bolt
Parts Inventory Continued
4x
1/4" Lock Washer
8x
1/4” Fender Washer
4x
1/4" -20 Grade 5 Hex
Nut
1x
Nylon Strap
2x
50Amp Connectors
Step 1:
If you are installing the Hidden Power onto an E250, install the 3/8” -16 x
2-1/2” Grade 5 Hex Bolts into the top of the weld nuts located on the back
of the A7729 Frame Plate. Thread the bolts down as far as possible by
hand. On the threaded portion sticking out below the weld nuts, install a
3/8”-16 Grade 5 Hex Nut. See figure 1.1

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Figure 1.1
If you are installing the Hidden Power onto an E350, thread the 3/8”-16
Grade 5 Hex Nuts onto the 3/8”-16 x 1-1/4” Grade 5 Hex Bolts. Thread the
nuts down onto the bolt, leaving about 3/8” of thread sticking out past the
nut. Loosely install the 3/8”-16 x 1-1/4” Grade 5 Hex Bolts with 3/8”-16
Grade 5 Hex Nuts into the bottom of the weld nuts located on the back of
the A7729 Frame Plate. See figure 1.2

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Figure 1.2
Step 2:
Locate an empty space on the outside of the driver side frame rail. Hold
the A7729 Frame Plate up to the frame to make sure that it is going to sit

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flush against the frame. There is a slot in the middle of the A7729 Frame
Plate which can be used to bolts protruding from the frame.
Once you have located a spot where you would like to install the Hidden
Power, slide the two 1/2"-14 x 4” Hex Bolt Grade 8s and the 1/2"-13 x 3-
3/4” Hex Bolt Grade 8 Into the Hook Brackets as shown in figure 2.1
Figure 2.1
Step 3:
Place the two hook brackets with the 1/2" x 4” Grade 8 Hex Bolts on top of
the frame so that they hook around the frame with the threaded part of
the bolt pointing towards the outside of the frame.
Place the hook bracket with the 1/2" x 3-3/4” Grade 8 Hex Bolt onto the
bottom of the frame with the threaded part of the bolt pointing towards
the outside of the frame.
Step 4:
Place the A7729 Frame Plate up against the frame so that the bolts in the
hook brackets protrude through the holes in the A7729 Frame Plate.
Secure the frame plate with one 1/2” SAE Washer, One 1/2” Lock Washer,
and one 1/2" Grade 8 Hex Nut on each bolt. Torque to 35 ft-lbs. See figure
4.1

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Figure 4.1
Step 5:
Loosely install a 3/8” Lock Washer and 3/8”-16 Grade 5 Nut onto the
bottom of each frame plate stud located on the bottom of the A7729
Frame Plate. Be sure to leave at least 1/4” of space between the 3/8” Lock
Washer and the bottom of the A7729 Frame Plate.
Step 6:
With the Group 24-31 Battery Box resting on top of the Battery Tray, Lift
the battery tray up so that frame plate studs go through the large keyholes
in the Battery Tray. Once the studs are through the holes, slide the battery
tray towards the front of the vehicle. Install the 1/4" x 1-3/8” Bail Pin
through the A7729 Frame Plate and the Battery Tray to keep the Battery

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Tray from sliding back. Tighten the 3/8”-16 Flanged Nylock Nut on A7729
frame plate studs until just snug. See figure 6.1. Position the Group 24-31
Battery Box so that it is not touching any part of the vehicle. While
positioned, use a marker to transfer the location of the holes in the Battery
Tray to the Group 24-31 Battery Box.
Figure 6.1
Step 7:
With the hole locations transferred to the Group 24-31 Battery Box,
Remove the Group 24-31 Battery Box and Battery Tray from the vehicle.
Drill the holes in the box using a 1/4” drill bit. Install a 1/4" -20 x 3/4”
Grade 5 Hex Bolt and 1/4" Fender Washer down through the Group 24-31
Battery Box and through the Battery Tray.Secure the other side of the

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1/4" -20 x 3/4” Grade 5 Hex Boltswith a 1/4" USS Washer, a 1/4" Lock
Washer, and a 1/4" -20 Grade 5 Nut. Torque to 7 ft-lbs. See figure 7.1
Figure 7.1
Step 8:
Install the battery into the Group 24-31 Battery Box. Connect the battery
leads to their appropriate terminals (wiring not included). For your
convenience, two 50A Power Connectors have been included to aid in the
installation and future removal of the battery.

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*For all questions regarding connecting your battery to your vehicle or
camper, call your local RV service center.
Slide the non-buckle end of the Nylon Strap down through the slotted hole
in the Battery Tray (see figure 7.1). Using the Nylon Strap, secure the lid to
the battery box.
Step 9:
Reinstall the battery tray onto the A7729 Frame Plate as described in Step
6. Torque the 3/8”-16 Flanged Nylock Nuts on the bottom of the frame
plate studs to 25 ft-lbs. Make sure the 1/4" x 1-3/8” Bail Pin is installed
before proceeding.
On E250 vans, back the 3/8”-16 x 2-1/2” Grade 5 Hex Boltsout of the 3/8”
weld nuts until the heads of the bolts are touching the bottom of the E250
frame. Back them out an additional 1/2 turn, and secure their position by
tightening the 3/8” -16 Grade 5 Nuts against the bottom of the A7729
Frame Plate.
On E350 vans, screw the 3/8”-16 x 1-1/4” Grade 5 Hex Bolts into the 3/8”
Weld Nuts until they contact the E350 frame. Screw them in an additional
1/2 turn. Secure their position by tightening the 3/8” -16 Grade 5 Nuts
against the bottom of the A7729 Frame Plate.
Battery Charging Wire Diagrams
To test if you have a factory battery separator, use a voltmeter or
a 12V test light to test for key on/ key off positive power at the RV
Plug. See RV Plug Diagram below.