Maxon DMD series User manual

© MAXON Lift Corp. 2018
To find maintenance & parts information for your DMD Liftgate, go to
www.maxonlift.com. Click the PRODUCTS, RAILIFT & DMD buttons.
Open the Maintenance Manual in the PRODUCT DOCUMENTATION
window.
To find maintenance & parts information for your DMD Liftgate, go
to www.maxonlift.com. Click the PRODUCTS, RAILIFT & DMD
buttons. Open the Maintenance Manual in the PRODUCT DOCU-
MENTATION window. For parts, click on the PARTS PORTAL,
RAILIFT & DMD buttons.
M-16-39
JUNE 2018

TABLE OF CONTENTS
WARNINGS..............................................................................5
LIFTGATE TERMINOLOGY.....................................................6
DECALS & PLATES ...............................................................7
FORKLIFT ADVISORY............................................................9
OPERATION ............................................................................10
UNFOLDING THE PLATFORM................................................10
LOADING VEHICLE.................................................................14
LOWERING THE PLATFORM .................................................14
POSITIONING LOAD...............................................................14
RAISING & UNLOADING PLATFORM.....................................15
UNLOADING VEHICLE............................................................16
LOWERING THE PLATFORM .................................................16
RAISING THE PLATFORM......................................................16
POSITIONING LOAD...............................................................17
LOWERING & UNLOADING PLATFORM................................18
STOWING PLATFORM............................................................19
USING STANDARD CART STOPS (IF EQUIPPED) ...............22
USING RETENTION RAMP (IF EQUIPPED)...........................25

4
THIS PAGE INTENTIONALLY LEFT BLANK

5
WARNINGS
2. Do not exceed rated load capacity of 2200 lb for DMD-22 Liftgate,
and 3300 lb for DMD-33 Liftgate.
3. Do not allow any part of your body to be placed under, within, or
around any portion of the moving Liftgate or its mechanisms, or in
a position that would trap them between the platform and the floor
of truck body (or between platform and the ground) when Liftgate
is operated.
4. Consider the safety and location of bystanders and
location of nearby objects when operating the Liftgate. Stand
to one side of platform while operating the Liftgate. Be certain
that the area the Liftgate will move through during operation
is clear of all obstacles.
5. Comply with all attached instruction decals and warning decals.
11. Above all, USE GOOD COMMON SENSE when operating this
Liftgate.
8. Do not move vehicle unless Liftgate is correctly stowed.
6. Keep decals clean and legible. If decals are illegible or missing,
have them replaced. Get free replacement decals from Maxon.
7. Never drive a forklift on the Liftgate platform.
10. A correctly installed Liftgate will operate smoothly and reasonably
quiet. The only noticeable noise during Liftgate operation is from
the power unit while the platform is being lowered and raised. Lis-
ten for scraping, grating and binding noises and have the problem
corrected before continuing to operate the Liftgate.
MAXON Lift Corp. Customer Service
11921 Slauson Ave
Santa Fe Springs, CA 90670
[phone]
WARNING
!
9. Correctly stow platform when not in use. Extended platforms
could create a hazard for people and vehicles passing by.
1. Incorrect operation of this Liftgate can result in serious personal
injury. Comply with WARNINGS and Liftgate operating instructions
in this manual. Do not allow untrained persons or children to oper-
ate the Liftgate. If you need to replace an Operation Manual, ad-
ditional copies are available from:
12. Never use a cell phone while operating the Liftgate.

6
LIFTGATE TERMINOLOGY
RUNNER
PLATFORM
LH COLUMN
MAIN FRAME
HOUSING
COVER
LOCK
POWER
UNIT
(BEHIND
COVER)
UP/DOWN
CONTROL SWITCH
(OUTBOARD)
UP/DOWN
CONTROL SWITCH
(INBOARD)
TRANSIT
HOOK
FOLD/UNFOLD
SWITCH
(IF EQUIPPED WITH
HYDRAULIC CLOSER)
RH COLUMN

7
DECALS & PLATES
DECAL “E”
DECAL “D”
DECAL “B”
DECAL “A”
NOTE: Ensure there is no residue,
dirt, or corrosion where
decals are attached. If
necessary, clean surface
before attaching decals.
FAMILY OWNED DECAL
P/N 283445-01
WARNING DECAL
P/N 298373-01
DECAL “C”
DECAL “F” OR “G”
DMD-22 ONLY
CAPACITY DECAL
P/N 220388-03
DMD-33 ONLY
CAPACITY DECAL
P/N 220388-02
WARNING DECAL
P/N 299274-01
COLUMN ARROW
DECAL “H”
P/N 289192-01
RUNNER ARROW
DECAL “H”
P/N 289192-01

8
DECALS
DECAL SHEET
P/N 289192-01
WARNING DECAL
P/N 298373-01
WARNING DECAL
P/N 299274-01

9
Keep forklift OFF of platform.
FORKLIFT ADVISORY
FIG. 9-1
FIG. 9-2
WARNING
!

10
1. Raise platform stop off transit
hook (FIG. 10-1A) by pushing the
outboard control switch to (UP)
position (FIG. 10-1).
UNFOLDING THE PLATFORM
OUTBOARD CONTROL
SWITCH (UP)
OPERATION
TRANSIT
HOOK
PLATFORM
FIG. 10-1
PLATFORM
STOP
FIG. 10-1A

11
2. Rotate transit hook away
from platform stop (FIG.
11-1A). Push outboard
control switch DOWN (FIG.
11-1) to lower the platform
slightly until platform stop
clears transit hook.
FIG. 11-1
TRANSIT HOOK
PLATFORM
STOP
PLATFORM
FIG. 11-1A
OUTBOARD
CONTROL
SWITCH (DOWN)

12
3. For manual close Liftgate, push platform lock
up to unlock the platform (FIG. 12-1A).
Manually unfold platform (FIG. 12-1).Next,
push platform lock down to lock
platform (FIG. 12-1B).
UNFOLDING PLATFORM
(MANUAL CLOSE)
FIG. 12-1
FIG. 12-1A
PLATFORM
LOCK
FIG. 12-1B
PLATFORM
LOCK
UNFOLDING THE PLATFORM - Continued
PLATFORM
NOTE: If platform is
equipped with hydraulic
closer, do step 4.

13
4. For Liftgate equipped with hydraulic closer, hold power
closer switch (FIG. 15-1) and lower outboard control
switch (DOWN) at the same time to unfold platform
(FIG. 13-1).
5. Unlock and unfold flipover (if equipped)
(FIG. 13-2).
FLIPOVER
UNFOLDING FLIPOVER
FIG. 13-2
LATCH
UNFOLDING PLATFORM
(EQUIPPED WITH HYDRAULIC CLOSER)
FIG. 13-1
POWER CLOSER
SWITCH (UNFOLD)
OUTBOARD CONTROL
SWITCH (DOWN)
PLATFORM
LOCK

14
Place all loads as close as
possible to the inboard edge of
the platform with heaviest part
toward the truck body as shown
in FIG. 14-2. Move loads across
the ramp (FIG. 14-2) to the
platform, but never rest or raise
loads on the ramp. If standing
on platform with the load, stand
in the footprint area shown
and comply with the preceding
WARNING.
A load should never extend past the edges of the platform. Do not
place unstable loads on platform and do not allow load to exceed
lifting capacity of Liftgate. If standing on platform, do not allow your
feet to extend beyond inboard edge of platform.
WARNING
!
LOADING PLATFORM AT GROUND LEVEL
FIG. 14-2
LOADING VEHICLE
POSITIONING LOAD
LOWERING THE PLATFORM
Use outboard control switch
to lower (DOWN) platform
(FIG. 14-1). Release toggle
switch when platform reaches
the ground.
FIG. 14-1
RAMP
INBOARD
EDGE
OUTBOARD
CONTROL
SWITCH (DOWN)

15
2. Carefully move the load
into vehicle (FIG. 15-1).
RAISING & UNLOADING PLATFORM
A ramp in retention position can trip you when stepping over it.
To prevent possible injury, get on the platform before putting the
ramp in retention position.
CAUTION
!
1. Use inboard control switch
to raise (UP) platform from
ground level to bed height
(FIG. 15-1). Release toggle
switch when platform
reaches bed height.
INBOARD CONTROL
SWITCH (UP)
3. Use inboard control
switch to lower (DOWN)
the platform to ground
level (FIG. 15-2).
MOVING LOAD INTO VEHICLE
FIG. 15-1
4. If there are more loads
to put in vehicle, repeat
the previous LOADING
VEHICLE steps for
each load. When
loading is finished, use
STOWING PLATFORM
procedure in this
manual. LOWERING PLATFORM
FIG. 15-2
INBOARD CONTROL
SWITCH (DOWN)

16
UNLOADING VEHICLE
LOWERING THE PLATFORM
RAISING THE PLATFORM
Use inboard control switch to
raise (UP) platform (FIG. 16-2)
from ground level to bed height.
Release toggle switch when
platform reaches bed height.
FIG. 16-2
INBOARD CONTROL
SWITCH (UP)
Use inboard control switch
to lower (DOWN) platform
(FIG. 16-1). Release toggle
switch when platform
reaches the ground.
FIG. 16-1
INBOARD CONTROL
SWITCH
(DOWN)

17
A load should never extend past the edges of the platform. Do not
place unstable loads on platform and do not allow load to exceed
lifting capacity of Liftgate. If standing on platform, do not allow your
feet to extend beyond inboard edge of platform.
WARNING
!
POSITIONING LOAD
PUSHING LOAD ON PLATFORM
FIG. 17-1
Load the platform at bed level
(FIG. 17-1) as follows. Push load
out of the vehicle to correct posi-
tion on the platform. Place all loads
as close as possible to the inboard
edge of the platform with heaviest
part toward the vehicle body as
shown in FIG. 17-1. If standing on
platform with the load, stand in the
footprint area shown and comply
with the WARNING at the top
of this page.
Pulling the load from vehicle to platform can result in a fall from
platform and serious injury. When unloading vehicle, always push
the load out on the platform.
!WARNING
UNLOADING VEHICLE - Continued
INBOARD
EDGE

18
1. Use outboard control switch
to lower (DOWN) platform
to the ground (FIG. 18-1).
Release toggle switch
when platform reaches
ground level.
Before lowering platform, make sure area surrounding platform is
clear of people and objects. If standing on platform, do not allow
your feet to extend beyond inboard edge of platform.
WARNING
!
2. Carefully move load off platform
(FIG. 18-2) and then move it to
a place where it will not become
a hazard for people and other
vehicles. If there is more to
unload from vehicle, repeat
the previous UNLOADING
VEHICLE steps for each load.
When unloading is finished,
use STOWING PLATFORM
procedure in this manual.
LOWERING & UNLOADING PLATFORM
MOVING LOAD OFF PLATFORM
FIG. 18-2
OUTBOARD
CONTROL
SWITCH
(DOWN)
LOWERING PLATFORM TO GROUND LEVEL
FIG. 18-1

19
1. Use outboard control
switch to raise (UP)
platform to comfortable
height (12“ to 18”) above
ground level (FIG. 19-1).
2. Fold and lock flipover (if
equipped) (FIG. 19-2).
FIG. 19-1
FIG. 19-2
NOTE: Ensure platform is stowed under hydraulic pressure.
STOWING PLATFORM
FLIPOVER
LOCK
OUTBOARD
CONTROL
SWITCH (UP)

20
3. Pull UP on platform lock
(FIG. 20-1A) to unlock
platform. Fold platform
to stowed position (FIG.
20-1). Push platform lock
DOWN to lock platform
(FIG. 20-1B).
FOLDING PLATFORM
FIG. 20-1
FIG. 20-1A
4. If equipped with hydraulic closer,
(FIG. 20-2) use one hand for
outboard control switch (UP)
(FIG. 20-2A) and one hand
for FOLD/UNFOLD switch
(FIG. 20-2B). Activate FOLD
and UP together until platform
is folded.
STOWING PLATFORM - Continued
FOLDING PLATFORM WITH HYDRAULIC CLOSER
FIG. 20-2
NOTE: If platform is
equipped with hydraulic
closer, do step 4.
Folding the platform with
hydraulic closer requires 2
hands on the controls. This
helps prevent injuries.
CAUTION
!
FOLD/UNFOLD
SWITCH
FIG. 20-2B
OUTBOARD CONTROL
SWITCH (UP)
FIG. 20-2A
PLATFORM
LOCK
FIG. 20-1B