Yale ERC40VH User manual

Maintenance
USER INTERFACE
SUPERVISOR
ERC40-55VH, ERC50VHS (ERC80-120VH,
ERC100VHS) [A938];
ERP13-15VC (ERP025-030VC) [B888];
ERP15-20VT (ERP030-040VT) [G807];
ERP16-20VF (ERP30-40VF) [A955];
ERC22-35VG (ERC045-070VG) [A968];
ERC16-20VA (ERC030-040VA) [A969];
ERP22-35VL (ERP045-070VL) [A976];
ERP40-50VM, ERP50-55VM6 (ERP080-120VM,
ERP100VML) [A985];
ERP80VNL6, ERP80VNL9, ERP90VNL (ERP170-
190VNL) [A410]
Region Language
UK de
en
es
fr
it
US de
en
es
fr
it
PART NO. 524319497 2200 YRM 1335

SAFETY PRECAUTIONS
MAINTENANCE AND REPAIR
•
The Service Manuals are updated on a regular basis, but may not reflect recent design changes to the
product. Updated technical service information may be available from your local authorized Yale®
dealer. Service Manuals provide general guidelines for maintenance and service and are intended for
use by trained and experienced technicians. Failure to properly maintain equipment or to follow
instructions contained in the Service Manual could result in damage to the products, personal injury,
property damage or death.
•
When lifting parts or assemblies, make sure all slings, chains, or cables are correctly fastened, and that
the load being lifted is balanced. Make sure the crane, cables, and chains have the capacity to support
the weight of the load.
• Do not lift heavy parts by hand, use a lifting mechanism.
• Wear safety glasses.
•DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair on electric lift
trucks. Disconnect the battery ground cable on internal combustion lift trucks.
•Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT THE LIFT
TRUCK ON BLOCKS in the Operating Manual or the Periodic Maintenance section.
• Keep the unit clean and the working area clean and orderly.
• Use the correct tools for the job.
• Keep the tools clean and in good condition.
•Always use YALE APPROVED parts when making repairs. Replacement parts must meet or exceed
the specifications of the original equipment manufacturer.
•Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to
remove parts.
•Always fasten a DO NOT OPERATE tag to the controls of the unit when making repairs, or if the unit
needs repairs.
• Be sure to follow the WARNING and CAUTION notes in the instructions.
•
Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel are
flammable. Be sure to follow the necessary safety precautions when handling these fuels and when
working on these fuel systems.
•Batteries generate flammable gas when they are being charged. Keep fire and sparks away from the
area. Make sure the area is well ventilated.
NOTE: The following symbols and words indicate safety information in
this manual:
WARNING
Indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury and property damage.

On the lift truck, the WARNING symbol and word are on orange
background. The CAUTION symbol and word are on yellow
background.
©2018 Yale Materials Handling Corp.
TABLE OF CONTENTS
General
Description
Display Panel Menu Access
Menu Flowchart
Supervisor Menu Flowchart
Menu Navigation
Main Menu Structure
Screens and Title Screens
Submenus
Returning to the Main Menu
Icons and Settings
Soft Keys
Entering Numbers
Icon Glossary
Introduction
Soft Key Icons
Overlay Icons
Icons on System Off Screen and Alert Screens
Main Menu Title Screens
Submenu Icons Grouped by Menu
Operating Screen Icons
Password Screen Icons
Activity Log Submenu Icons
Calibration Submenu Icons
Display Submenu Icons
Status Submenu Icons
Truck Setup Submenu Icons
Operating Screen
Introduction

Performance Mode Controls
Status and Warning Icons
Battery Discharge Indicator
Direction and Parking Brake Indicators
Hazard Flashers and Lighting Controls
Steer Angle Indicator
System Time
Load Weight Indicator
System Off/Alert Screens
Introduction
System Off Screen
Alert Screens
Password Screen
Introduction
Password Screen
Service Technician Password Setup
Adding/Removing/Changing Passwords
Password Log
Activity Log Menu
Introduction
Operator Checklist Log
Password Log
Impact Events Log
Calibration Menu
Introduction
Load Weight Calibration
Return to Set Tilt Stop Point Calibration
E-Hydraulic and Manual Valve Threshold Calibration
Steering Wheel Center Point Calibration
Steer Axle Position Calibration
Steer Axle Center Point Calibration
Manual Hydraulics Calibration
Display Menu
Introduction
Set Date and Time Format Menu
Set Daylight Saving Time Menu
Procedure for Setting Up Automatic Daylight Savings Time
Set Time and Date Menu
Procedure for Setting Time and Date
Set Units Menu
Status Menu

Introduction
VSM Versions
Display Versions
Truck Serial Number
Hour Meters
E-Hydraulic Controller Versions
Pump Motor Controller Versions
Traction Motor Controller 1 Versions
Traction Motor Controller 2 Versions
Light Controller Versions
Impact Sensor Versions
Truck Setup Menu
Introduction
Add/Remove Password
Battery Settings
Restore Default Settings
Motion Alarm
Impact Monitor Settings
Impact Detection
Setting Adjustments
Initial Adjustment of Soft and Hard Impact Settings
Readjustment of Soft and Hard Impact Settings.
Auto Power-Off Time Delay
Return to Set Tilt
Traction Speed Limit
Scheduled Maintenance Reminder
Minimum Pump Standby Flow Rate
Operator Checklist
Impact Monitor Shutdown
Motor Braking
Changing the Motor Braking Settings
Steering Wheel Friction and Steering Turns Adjustment
How to Adjust Settings
Steering Friction Setting
Steering Wheel Number of Turns
This section is for the following models:
ERC40-55VH, ERC50VHS (ERC80-120VH, ERC100VHS) [A938];
ERP13-15VC (ERP025-030VC) [B888];
ERP15-20VT (ERP030-040VT) [G807];
ERP16-20VF (ERP30-40VF) [A955];

ERC22-35VG (ERC045-070VG) [A968];
ERC16-20VA (ERC030-040VA) [A969];
ERP22-35VL (ERP045-070VL) [A976];
ERP40-50VM, ERP50-55VM6 (ERP080-120VM, ERP100VML) [A985];
ERP80VNL6, ERP80VNL9, ERP90VNL (ERP170-190VNL) [A410]
General
DESCRIPTION
The information provided in this Service Manual describes the functions of the display panel that are
available to the Supervisor. With a proper service technician password, a Service Technician can access menu
items that are not visible at Operator or Supervisor password-level access.
DISPLAY PANEL MENU ACCESS
Turning the keyless start switch or key switch to the ON position activates the Display Panel. Figure 1 shows
the layout of the Display Panel including the location of the keyless start switch or key switch.
1. 2 AND 3 KEYS
2. SCROLL FORWARD KEY (RIGHT ARROW)
3. 5, 6, 7, 8, 9, AND 0 KEYS
4. KEYLESS START SWITCH OR KEY SWITCH
5. SCROLL BACK KEY (LEFT ARROW)
6. 1 AND 4 KEYS
7. POUND KEY (# KEY)

8. ENTER KEY (* STAR KEY)
Figure 1. Lift Truck Display Panel
The operator password screen appears at startup as shown in Figure 2, if Operator Passwords are enabled.
Use the number keys on the Display Panel to enter your five-digit Supervisor password. For more
information, see the Password Screen topic.
If a non-service technician password has already been entered at the initial password screen, you can navigate
to the Password Screen by pressing the Enter Key (*) to go to the Main Menu, then press either the Scroll
Back Key (!!—) or the Scroll Forward Key (—▸) to access the Password Screen. Refer to the Menu
Navigation topic for orientation on the Main Menu title screens (the main level menus).
Figure 2. Password Screen
Menu Flowchart
SUPERVISOR MENU FLOWCHART
NOTE: Depending upon how the lift truck is equipped, some of the functions described in this section
may not be included in the on-board menu structure for a particular lift truck.
NOTE: The icons displayed on the Operating Screen vary from any one time to another, depending
on the current operation of the lift truck and other factors. The Battery Discharge Indicator, system
time, and direction indicator are always displayed.
All available menus are grouped by function under the main menu screens, which are also called top-level
title menus. When you select a main menu screen, the system then presents submenus, also known as second-
level menus, that you can cycle through using the UP ↑↑ or DOWN ↓↓ keys until you find the one you want on
the Display Panel. Two main menu screens, the Operating Screen and the Password Screen, have no
associated submenus, but the other main menus lead to submenus.
The following flowchart is for the Supervisor use only. See Figure 3 and Table 1.

Figure 3. Supervisor Flowchart (Sheet 1 of 4)

Figure 3. Supervisor Flowchart (Sheet 2 of 4)

Figure 3. Supervisor Flowchart (Sheet 3 of 4)

Figure 3. Supervisor Flowchart (Sheet 4 of 4)
Table 1. Supervisor Menu Flowchart
A B C D E F G H

1 Operating
Screen
Password
Entry
Activity
Log Calibration Diagnostics Truck Setup
Truck
Status
Display
Adjustment
2Operator Checklist Load Weight Add/Remove Password VSM Version Set Date and
Time Format
3Impact Events Manual Hydraulics Restore Default E-Steer Controller
1 Version
Set Units
4Password Steering Axle Center Point E-Steer Controller
2 Version
Set Time
and Date
5SHEET 1 Steering Axle Position Impact Sensor
Version
Set Daylight
Saving Time
6Steering Wheel Center Point Light Controller
Version
7Valve Threshold Traction Motor
Controller 2
Version
8Return to Set Tilt Stop Traction Motor
Controller 1
Version
9Pump Motor
Controller Version
10 E-Hydraulic
Controller Version
11 SHEET 2 Hour Meters
12 Truck Serial
Number
13 Display Version
14 Motion Alarm
15 Impact Monitor Settings
16 Auto Power-Off Time Delay
17
18 Return to Set Tilt
19 SHEET 3 Traction Speed Limit
20 Scheduled Maintenance
Required
21 Minimum Pump Standby
22 Operator Checklist
23 Interlock Menu Screen Impact Monitor Shutdown
24 Cycle the
Key
Traction Switch Direction Select in Neutral Truck Disabled Due to Right
(Single) Traction Controller
25 Secure
Battery
Hydraulic Switch Hydraulic Function 1 Out of Neutral Truck Disabled Due to Left
Traction Controller
26 SHEET 4 Release
Park Brake
Temperature Too High Hydraulic Function 2 Out of Neutral of
Function 2 Button Out of Neutral
Truck Disabled Due to Pump
Controller
27 Operator
out of Seat
Lift Limit Exceeded Hydraulic Function 3 Out of Neutral of
Function 3 Button Out of Neutral
Service Brake Interlock
28 Release
Accelerator
Charge Battery Hydraulic Function 4 Out of Neutral of
Function 4 Button Out of Neutral
Motor Braking
29 Release
Hydraulic
Input
Impact Detected-Enter
Service/Supervisor
Password
Truck Disabled Due to E-Steer
Controller
Steering Wheel Friction and
Steering Turns Adjustment
Menu Navigation
This topic explains how to use the keys on the Display Panel, shown in Figure 4, to navigate from one menu
to another and change settings.

1. LCD SCREEN
2. DISPLAY PANEL
Figure 4. Display Panel With Operating Screen Displayed
Keys used for menu navigation include:
• The 1, 2, 3, 4, and #keys.
• The Enter Key (*) which is also called the star key because of its * label.
•The Scroll Back Key (!!—) and the Scroll Forward Key ( —▸). These keys are explained in detail in
the General section of this document.
The Password Screen, discussed in the Adding/Removing/Changing Passwords topic in the Password Screen
section, is the first screen displayed when the key switch or keyless switch is turned to the On position unless
Operator Passwords are deactivated (in this case, the Activity Log Title Screen appears). After entering your
password successfully, the system displays the Operating Screen on the orange 1.5 x 2.5 inch LCD screen of
the Display Panel as shown in Figure 4.
When a title screen or a menu screen is displayed on the LCD screen, the screen is still referred to as the
“screen” in a generic way, but the actual Operating Screen is shown in Figure 4. See the Operating Screen
section for details.
When the Operating Screen is displayed, pressing the Scroll Forward Key (—▸) causes the system to display
the Password Screen. If you press the Scroll Forward Key a second time, the system displays the Activity
Log Title Screen, shown in Figure 5, on the LCD screen.

Figure 5. Activity Log Title Screen
Main Menu Structure
The main menus (top-level menus) appear on the screen in the order shown in Figure 6.
Use the Scroll Back Key or the Scroll Forward Key to move from one title screen to another. Press the
Enter Key to enter one of these main menus.
1. OPERATING SCREEN
2. PASSWORD SCREEN
3. ACTIVITY LOG TITLE SCREEN
4. CALIBRATION TITLE SCREEN
5. DIAGNOSTICS TITLE SCREEN
6. TRUCK SETUP TITLE SCREEN
7. STATUS TITLE SCREEN
8. DISPLAY TITLE SCREEN
Figure 6. Main Menu Structure
Screens and Title Screens

The main menu has eight menus, or screens, which are shown in Figure 6. By pressing the Scroll Forward
Key to advance through all of them.
If you press the Scroll Forward Key after reaching the Display Title Screen, the system returns (loops back)
to the Operating Screen. Press the Scroll Forward Key to scroll through the screens again. Alternatively, use
the Scroll Back Key to scroll through the screens in the reverse direction.
The Password Screen and Operating Screen do not have submenus below them. The other title screens are all
main menus which have submenus under them. Submenus can also be called second-level menus. Figure 5 is
an example of a main menu screen.
Supervisors have access to the Activity Log, Calibration, Display, Truck Setup, and Status Title Screens.
Service Technicians have access to all title screens; Operators use only the Password Screen, Operating
Screen, and Calibration Title Screen.
Submenus
Submenus are the “branches” of a main menu. The Activity Log Menu has only three submenus, while the
Truck Setup Menu has 13 submenus. Each submenu is represented by a title screen. When the title screen of
the submenu you want is displayed on the screen, press the Enter Key to enter that submenu. For example, if
you enter the Operator Checklist Log submenu, shown in Figure 7, the system displays the menu shown in
Figure 8.
When viewing a submenu title screen, you can return to the main menu at any time by pressing the Scroll
Back Key or the Scroll Forward Key.
Menu navigation is possible through the use of soft keys, which are explained in the Soft Keys topic. For
example, if you scroll to the Activity Log Title Screen and have it displayed on the screen as shown in
Figure 5, press the Enter Key (*) to enter the Activity Log menu. The system will display the first submenu
in the Activity Log menu, which is shown in Figure 7. Press the Enter Key again and the system will display
the Operator Checklist Log, shown in Figure 8. The Activity Log Icon in the upper left corner of this submenu
indicates you are in the Activity Log main menu.
Figure 7. Operator Checklist Log Title Screen

Figure 8. Operator Checklist Log Menu
Returning to the Main Menu
To return to the main menu from a submenu, press the Scroll Forward Key ( —▸). This returns you to the
title screen of the submenu (second-level menu) you are using. If you press the Scroll Forward Key a second
time, the system returns you to the main menu. You can return to the main menu, or back out of a submenu,
by pressing the Scroll Back Key.
Press the Enter Key to save any changes you make in submenu before exiting from the submenu. If you
return to the main menu before saving a change, the system does not store the change.
Icons and Settings
An icon is a simple graphic that represents an object, such as a clock, or a setting such as battery voltage.
Each submenu has at least one icon on it, and each icon represents: 1) a setting that can be changed, or 2) a
status value that can be viewed, such as a truck's serial number, or 3) an action that can be taken, such as
clearing the fault log. Only a logged in user who has the proper privileges can change a setting, view a status
value, or take an action.
A setting is a value that controls the operation of a lift truck in some way. For example, there are four values
for the performance mode setting, 1, 2, 3, and 4. Some settings have only two values, such as Enabled and
Disabled, while other settings may present a series of values you can select from by using the soft keys. In
some cases, you need to enter a numerical value that is within an acceptable range for a setting. In this case,
you key in the value using the number keys. This is discussed in the Entering Numbers topic at the end of this
section.
On submenus that have two or more icons, the icons correspond to related settings. To change settings you
need to use the buttons called soft keys, which are explained in the next topic.
Soft Keys
Certain keys on the Display Panel called "soft keys" make it possible to navigate from one menu to another,
change settings, delete a log entry, or take other actions. A soft key is a key that has been programmed to
serve more than one function, and the function it serves depends on which menu is active. For example, when
the Operating Screen is displayed, the #key lets you turn the Hazard Flashers On or Off, but when you are in
the Activity Log Checklist menu, the #key can be used to delete a log entry.
The soft keys include the 1and 4keys on the left, the 2and 3keys on the right, and the #and *keys below
the Operating Screen. There are no icon indicators for the soft keys.
The *soft key serves as an Enter Key in all menus except when using the Operator Checklist (see the
Operator Checklist topic in the Truck Setup Menu section). In a lot of menus, the 2and 3soft keys are

programmed for navigating up or down in the menu to the setting value you want to change. Also, in most but
not all menus, the 2and 3soft keys are programmed for moving up or down though the available values or
options for the currently selected setting. When this is the case, the up and down arrows are displayed on the
right side of the screen.
The following example shows how to use the soft keys.
How to Change the Battery Voltage Setting
1Starting from the main menu, use the Scroll Back Key (!!—) or Scroll Forward Key (—▸) to navigate
to the Truck Setup Title Screen and press the Enter Key (*).
2Use the 2or 3arrow soft keys to step through the menus to the Battery Setup submenu (the title screen
of this submenu has a battery icon on it) and press the Enter Key.
3
Press the 2or 3arrow soft key to "move to" the value located to the right of the top icon an the system
will place a "selection box" around the value. This number indicates the current battery voltage, such
as 36.
4 With the selection box around the battery voltage value, press the Enter Key.
5Use the 2and 3arrow soft keys to move up or down though the available values (36, 48, 72, and 80)
until 48 is displayed, then press the Enter Key.
The system stores the 48 Volt value and begins using it as the new battery voltage setting.
NOTE: While changing a setting, all other sub-items (setting items) disappear.
Entering Numbers
The preceding example shows how the system allows a user to select one value out of a series of values. In
some menus, you will use the number keys (0 through 9) to enter a value directly. These are:
•The 1, 2, 3, and 4soft keys. These keys can be used as number keys only in the menus that accept
numerical input. These keys are programmed for use as soft keys in most menus.
•The 5, 6, 7, 8, 9, and 0keys. These keys can be used to enter numbers in menus that allow numerical
input. These keys are not soft keys in any menu.
Passwords are a special case of entering numbers. The user is required to enter a five digit “password”
number, such as 15324, on the Password Screen. This number must consist only of the numbers 1, 2, 3, 4, 5,
6, 7, 8, and 9 and is entered using the 1, 2, 3, 4, 5, 6, 7, 8, and 9keys. Pressing any other numeric key has no
effect.
Icon Glossary
INTRODUCTION
An icon is a symbol that conveys a unique meaning without words, such as an arrow. The Operating Screen
on this lift truck presents information to an operator solely through the use of symbols which are mostly icons,
along with some numbers and a few text characters. Icons make it possible to simultaneously display up to 12
kinds of information graphically in a small space. In addition, the use of icons reduces the difficulty of
communicating with operators who speak different languages.
The meaning of some icons is apparent when the icon appears by itself, such as the seat belt icon. Other icons
need to have numeric information displayed alongside them to present information, such as when 24 appears
beside the clock icon to indicate the times are being displayed using the 24-hour clock system. Sometimes two
icons are displayed side by side to convey information, such as when the icon that means "enabled" is shown
beside the rear lights icon. Also, two icons can be displayed at the same time, one over the other, which is
discussed in the Overlay Icons topic.

The icons and their meanings are presented in these categories:
• Soft Key Icons
• Overlay Icons
• Icons on System Off Screen and Alert Screens
• Main Menu Screens
• Submenu Icons Grouped by Menu
SOFT KEY ICONS
Some of the icons on the Operating Screen are called soft key icons because they associate an operation or
function with a nearby key (1, 2, 3, 4, #, or *) on the Display Panel. The result of pressing one of these keys
depends on which menu is currently active, because the icons nearest these keys change from one menu to
another. The soft keys are programmed to function in relation to the current menu context. Table 2 shows the
soft key icons that appear on the Display Panel along with a short description of each one's purpose.
Table 2. Soft Key Icons
Icon Description
Hare Performance Mode "increase" Icon. Press the 1soft key (or the #soft key in some
cases) to increase performance.
Tortoise Performance Mode “decrease” Icon. Press the 3soft key to decrease
performance.
Trash Can Icon. Used to delete all entries in a log. Press the 4soft key (or the #soft key
in some cases) to empty a log.
Up Arrow soft key. Press 2to scroll up in most screens. Also used to view next log entry
in log screen.
Down Arrow soft key. Press 3to scroll down in most screens. Also used to view next
log entry in log screen.
View Next Device Log Icon. Press the #key for previous.
View Previous Device Log Icon. Press the *key for next.
This icon points to the *key (the soft Enter Key) and is used to accept a value,

command a calibration action, or restore defaults, depending on the context when the *
key is pressed.
Enable Current Item Icon. When the *key is pressed, the current item displayed will
appear during the Operator Checklist sequence.
Deactivate Soft Key Icon. Indicates function is deactivated. Press the *key to
deactivate.
“Enable” Traction and Hydraulics for Forklift Icon. Press the 2key to enable.
“Disable” Traction and Hydraulics for Forklift Icon. Press the 4key to disable.
Hazard Flashers Icon. Press the #key to toggle the hazard flashers on and off.
Select system time for Fault Log event. Press the 1key to select system time (this soft
key toggles between system times and hour meters).
Front Truck Lights Icon. Only available with CAN light controller. Press the 4key to
turn truck lights on.
Rear Truck Lights Icon. Only available with CAN light controller. Press the 2key to
turn truck lights off.
OVERLAY ICONS
Icons that look like they are placed over another icon are called overlay icons. This type of icon always
appears in conjunction with another icon, not by itself. Table 3 shows the overlay icons and describes how
they are used.

Table 3. Overlay Icons
Icon Description
Null Symbol Icon. When this icon overlays another icon it indicates that a setting value is
invalid or out-of-range.
X Icon. This icon indicates that a feature has been deactivated (disabled).
ICONS ON SYSTEM OFF SCREEN AND ALERT SCREENS
The System Off Screen and the various Alert Screens appear only briefly. These screens also show interlocks
such as Operator Not in Seat. Refer to System Off/Alert Screens for more information on these screens. The
icons used in alert screens identify either status or warning conditions. Table 4 shows the icons that can appear
on these screens.
Table 4. Alert Screen Icons
Icon Description
Alert
Example of a Fault Screen
Traction Icon
Forklift Truck Icon
Service Required Icon