14
platform capable of supporting the loaded pallet. An ideal surface would be 18 – 24 inches (457 – 610 mm) in height and have clearance
for the outriggers at the fl oor. Lower the damaged pallet onto the surface and remove the UniLift. Another lifting device must be used.
ROUTINE MAINTENANCE
The UniLift is designed to provide years of trouble free service and requires very little maintenance. However, a routine inspection and
maintenance program will prevent costly replacement of parts and/or downtime. All service should be performed by a qualifi ed service person who
has an understanding of load positioning equipment and electrical/hydraulic diagrams. This person should be thoroughly familiar with the operation
and use of this type of equipment.
DANGER
A falling load can cause
SEVERE PERSONAL INJURY
or
DEATH
.
NEVER
go under the loaded or unloaded forks.
All maintenance should be performed with the forks in the fully lowered position or securely blocked in a raised
position.
Use extreme care when handling or working around batteries. Improper handling can cause
SEVERE PERSONAL
INJURY
or
DEATH
.
ALWAYS
use eye protection and protective clothing when handling batteries. Batteries contain acid which can cause
severe burns and injury.
NEVER
expose a battery to extreme heat, open fl ames or sparks. Battery vapors are explosive.
WARNING
ALL lift servicing must be performed by qualifi ed personnel only. Unauthorized modifi cations to the UniLift, its
hydraulic power unit or its control system may compromise the performance and safety of the system resulting in
SEVERE PERSONAL INJURY
and
PROPERTY DAMAGE.
UNDER NO CIRCUMSTANCES
should you attempt any repair or service that is not covered in this manual.
DO NOT
attempt to remove the constant force spring. The constant force spring is heavily preloaded and will recoil
violently if released.
ALWAYS
remove the load and
DEPRESS THE DOWN BUTTON
for several seconds to release the hydraulic
pressure before servicing the lift. The release of hydraulic fl uid under high pressure can be dangerous.
ALWAYS
disconnect the battery before servicing the electrical system. Not doing so could result in a
SEVERE
ELECTRICAL SHOCK.
Blocking the Forks in a Raised Position
Blocking the unloaded forks in an elevated position may be required for certain periodic inspections or maintenance operations. There are many
acceptable methods to block or secure the unloaded fork carriage in an elevated position. Identifi ed below are several methods:
• Bishamon carriage support (recommended method)
• Fork lift
• Overhead hoist or structure with sling
• Portable scissor lift
• Heavy duty work platform approximately 32 inches high
• Structural member securely positioned in the mast
Always use extreme care when blocking the unloaded forks in an elevated position. If an acceptable method is not available, Bishamon offers an
optional carriage support plate that will secure the elevated fork carriage to the top of the mast. Install the plate as follows:
1.
Completely lower the forks and turn the key switch to the OFF position. Remove the mast top cap and disconnect the mast cover. Detailed
instructions are presented on the following pages.
2.
Position the carriage support plate over the roll pins. Next, replace the center button head cap screw and tighten securely.
Figure 22 Handle Assembly Removal
3.
Turn the key switch to the ON position and carefully lower the fork
carriage until the carriage support plate rests on top of the mast.
Install the hex bolt supplied with the bracket into the center hole on
top of the mast and tighten securely.
4.
Finally, turn the key switch to the OFF position. The fork carriage is
now secured in an elevated position.
Removing the Upper Console and Lower Battery Cover
Tools required:
• 5/32 Hex L-Key (Allen) wrench or equivalent
• Two 1/2 inch sockets or wrenches
1.
First, move the UniLift to an area with good lighting and a suitable
work area. Completely lower the forks and turn the key switch to
the OFF position. Next, using the two 1/2 inch sockets or wrenches,
remove the bolt and nut that secure the handle assembly to the
brake pivot shaft. As shown in Figure 22, pull the handle assembly
straight up off the brake pivot shaft and set it off to the side.
