Presto M100, M400, M300, M200 User Manual
Foot Operated Lifts
M100, M200,
M300 & M400
Installation, Operation
and Service Manual
Model Number ___________________
Serial # _________________________
Date placed in service _____________
IMPORTANT: READ CAREFULLY
BEFORE INSTALLING OR OPERATING LIFT
Part orders are subject to a $50 miminum charge.
April 2007
This manual was current at the time of printing. To obtain
the latest, most updated version, please contact Presto Lifts
Customer Service Department or go to our website:
www.PrestoLifts.com -- you will find a complete list of
current owner’s manuals to print.
OWNER’S MANUAL Page 2 M100, M200, M300 & M400 FOOT OPERATED LIFTS
C O N T E N T S
S E C T I O N 1:
Introduction ........................................................................................................... 4
S E C T I O N 2:
Safety ..................................................................................................................... 4
S E C T I O N 3:
Installation ............................................................................................................. 4
S E C T I O N 4:
Operation ............................................................................................................... 4
S E C T I O N 5:
Maintenance........................................................................................................... 5
S E C T I O N 6:
Service ................................................................................................................... 6
S E C T I O N 7:
Troubleshooting..................................................................................................... 6
RESTOCKING POLICY................................................................................................. 18
RETURN GOODS AUTHORIZATION (RMA) PROCEDURES ................................. 19
ORDERING REPLACEMENT PARTS.......................................................................... 20
WARRANTY ............................................................................................. BACK COVER
L I S T O F F I G U R E S :
Table 1: Hydraulic Oil Specifications ............................................................................................ 5
Figure 1: Wheel Identification..........................................................................................................7
Figure 2: Chain Roller Assembly .....................................................................................................7
Complete Cylinder breakdown by Part Number (Text) .............................................................. 8-9
Figure 3: M100-10 Pump Body Complete.....................................................................................10
Figure 4: M400-20 Cylinder Assembly Repair Kit ........................................................................ 11
Figure 5: M400-30 Pump Plunger Assembly.................................................................................12
Figure 6: M400-40 Cylinder Packing Kit.......................................................................................13
Figure 7: M400-50 Release Pin Assembly ....................................................................................14
Figure 8: Backplate Assembly .......................................................................................................15
Figure 9: Platform Assembly .........................................................................................................16
Figure 10: Stacker Assembly .........................................................................................................17
OWNER’S MANUAL Page 3 M100, M200, M300 & M400 FOOT OPERATED LIFTS
S E C T I O N 1
INTRODUCTION
This manual attempts to provide all of the information
necessary for the safe and proper installation, operation and maintenance of Presto Lifts Inc.'s MSeries
Stackers. It is important that all personnel involved
with the installation, maintenance or operation of the
stacker read this manual. Where unique situations arise,
that are not covered in this manual call Presto Lifts for
further instructions. Additional manuals are available
upon request or on our web site at www .prestolifts.com.
• Do not put hands or feet on or near the mast
while the forks or platform is in motion.
• Do not stand, sit or climb on the lift.
• Do not exceed the load capacity.
• Place all loads centrally located on the lift forks or
platform.
• Do not place a load on a moving lift.
• Do not use the lift on soft, uneven or unstable
surfaces.
• Do not shock load the forks or platform. Materi-
als must be carefully placed rather than dropped.
The stacker has a nameplate that provides the load capacity ratings, serial number and model identifications.
Please refer to these numbers when ordering parts or
requesting further information.
WHERE UNIQUE SITUA TIONS ARISE, THAT ARE
NOT COVERED IN THIS MANUAL, CALL PRESTO
LIFTS SER VICE DEP AR TMENT FOR FUR THER INSTRUCTIONS.
S E C T I O N 2
SAFETY
The M Series stackers are very capable of causing serious injury or damage if adequate precautions are not
taken. By reading and following this manual, operator
injury may be prevented.
DO NOT INSTALL OR OPERATE THESE LIFTS
WITHOUT CAREFULLY READING THIS
MANUAL. In order to provide for the safe operation
of these stackers, Presto Lifts Inc. has identified certain
hazards that may occur during the installation, maintenance and use of these lifts.
S E C T I O N 3
INSTALLATION
INSTALLATION
When the stacker arrives on a pallet the following steps
are to be followed:
1. Through the use of a forklift or overhead hoist, pick
the stacker unit up taking into consideration the center
of gravity. The center of gravity of the unit should be
adequately supported.
2. Once the unit is lifted from the pallet by a couple of
inches, remove the pallet from under the stacker.
3. Follow the next sections to ensure proper operation.
S E C T I O N 4
OPERATION
METHOD OF OPERATION:
In order to operate the lift follow these operating procedures.
WARNING!
• Do not perform any repair work on lifts if there is
a load on the platform or forks are in the raised or
lowered position.
• All personnel must stand clear of the lift when the
lift is in motion.
• Do not put hands or feet under forks or platform
while in motion.
OWNER’S MANUAL Page 4 M100, M200, M300 & M400 FOOT OPERATED LIFTS
1). To raise the platform or forks, pump foot pedal until platform reaches desired height.
2). To lower lift, press release pedal down. Pressure on
release pedal controls speed of descent of load.
S E C T I O N 5
MAINTENANCE
ROUTINE MAINTENANCE:
1). Grease wheels and casters at least once a month to maintain easy roll of lift.
2). Do not overload the lift. All foot operated Presto Manual Stackers have a maximum rated capacity
of 1000 lbs.
3). Use only hydraulic oil in the hydraulic system. NEVER USE HYDRAULIC BRAKE FLUID.
Table 1 – Hydraulic Oil Specifications
If the lift will be used at normal ambient temperatures, Presto Lifts supplies the unit with
Citgo A W 32 oil. This may be replaced by any other good quality oil with 150 SSU at 100°
F and rust and oxidation inhibitors and anti-wear properties.
If the lift will be used at ambient temperatures below 0°F, use aircraft hydraulic oil. Use
Type 15 aircraft hydraulic oil.
The following are equivalent to CITGO AW32:
TYPE MANUFACTURER
DTE 24 ............................. EXXON/MOBIL
NUTO H32........................ EXXON/MOBIL
AMOCO AW32.................. CHEVRON (AMOCO CO.)
CAUTION!
It is very important to keep the hydraulic oil free of dirt, dust, metal chips,
water, and other contamination. Most of the problems with hydraulic systems
are caused by contamination in the oil.
OWNER’S MANUAL Page 5 M100, M200, M300 & M400 FOOT OPERATED LIFTS
S E C T I O N 6
S E C T I O N 7
SERVICE
To remove cylinder from lift:
1. Pump lift to above 12'' height and then prop platform or forks up to keep it in raised position.
2. Step on release pedal and push ram down by
hand until it reaches its lowest point.
3. Slip chain off pulley and remove pulley assembly.
4. T ake of f two bottom cap screws that hold cylinder in place and slide cylinder forward towards the
base legs of the lift. The cylinder can now easily
be removed.
To replace ram chevron set in hydraulic cylinder assembly:
1. Remove hydraulic cylinder from lift and remove
V ent Plug (Part No. M427) and Oil Level Plug (Part
No. 428) and drain oil from cylinder.
2. Clamp pump body in vise, unscrew top hex nut
and remove outer cylinder.
3. Remove inner cylinder from pump making sure
not to distort or mar cylinder. Note: Do not use
pipe wrench.
4. Remove ram and replace chevron set.
TROUBLESHOOTING
If lift does not rise to full height:
It probably requires oil. (Check with lift in down
position.) T o fill cylinder with oil, follow these instructions.
There are two pipe plugs in the cylinder, Part No.
M427 (Vent Plug) and part No. M428 (Oil Level
Plug). Remove both plugs.
Put a good grade of hydraulic jack oil in the cylinder through the top hole. When the oil reaches the
level of the bottom hole, replace both plugs. TOP
PLUG IS A BREATHER PLUG, BE SURE TO
REPLACE PLUGS IN THEIR PROPER PLACES.
If lift does not hold load, or tends to drift downward under a load:
Dirt particle may be obstructing seating of the
valve, allowing leakage.
If dirt particle is obstructing seating of the valve:
Open release valve by pressing down on release
pedal. At the same time, pump foot lever three or
four strokes. Do this three or four times. Then place
some weight on the platform or forks and pump
foot lever until platform reaches its full height.
Now, lower lift six inches to a foot at a time. This
should dislodge dirt and lift should work properly .
5. Push ram into inner cylinder -- chevron end last!
6. Reassemble and fill with clean hydraulic jack oil.
OWNER’S MANUAL Page 6 M100, M200, M300 & M400 FOOT OPERATED LIFTS
F I G U R E 1:
WHEEL IDENTIFICATION
WHEEL IDENTIFICATION
ITEM NO. PART NUMBER DESCRIPTION
1 C101PH2 Swivel Caster Assembly
2 C102PH Rigid Phenolic Wheel
F I G U R E 2:
CHAIN
ROLLER
ASSEMBLY
3 C103 Mounting Hardware
CHAIN ROLLER ASSEMBLY
ITEM NO. PART NUMBER DESCRIPTION
1 0584-VR Single Chain Assembly
2 C104** Chain
3 C106B Lock Ring
4 C106C Chain Socket
3/4'' Adjustable
5 C106A Clevis Pin
** SPECIFIC MODEL NUMBER
REQUIRED WHEN ORDERING
FOR CORRECT CHAIN LENGTH
OWNER’S MANUAL Page 7 M100, M200, M300 & M400 FOOT OPERATED LIFTS
Loading...