Model 4700 Maintenance Manual

Options

Standard Lever Controls

Bottler’s Tilt

Bottler’s Tilt allows the mast to be tilted further forward when under free lift mast height. The limit is 9 ° forward, 6 ° backward. The option is controlled by two switches, a Blocking Solenoid (EV12), and a Tilt Limit Solenoid (EV13).

When the forks are fully lowered and the mast is centered, the End of Free Lift switch (SW16) and the Angle Tilt Proximity switch (SW30) are normally closed. When tilt is requested, tilt functions as normal. Ho wever, when the forks are elevated above free lift, SW16 opens, causing a change in state to be seen at the VM. If tilt is then requested, the VM allows forward Tilt until it sees a change in state of SW30. If the VM sees SW16 and SW30 open, it commands the Tilt Limit Solenoid (EV13) to activate, stopping return flow from the tilt cylinders and preventing further forward tilt. If the mast is then lowered until SW16 closes, tilt forward is allowed.

If lift is requested while the mast is tilted fully forward, lift is allowed until the End of Free Lift switch opens. When the VM again sees SW30 and SW16 open, it de-energizes the Blocking Solenoid (EV12), blocking flow to the lift cylinders. When the mast is tilted back until SW30 closes, EV12 is energized, allowing flow to the lift cylinders.

Lift-Limit with Bypass

Lift-Limit with Bypass consists of a switch placed on the mast that prevents lift past a certain height. To lift beyond this height, the operator must activate a switch.

This is accomplished by having a Mast Height switch (SW31), Lift-Limit Push Button switch (PB9), and a Blocking Solenoid (EV12).

If switch SW31 is opened during a lift request, the VM sees the change of state and

Publication 1160093, Issued: 20 May 2013 de-energizes EV12, blocking fluid to the lift cylinders. To continue lifting, PB9 must be depressed and the lift request resumed.

Finger Tip Controls Bottler’s Tilt

Same as for a lever controlled truck with the exception of the Tilt Limit Solenoid. When the VM senses a change in state at the switches that limit lift or tilt, the VM sends a communication message to the Hydraulic Control Board. The Hydraulic Control Board then removes the request for the requested function.

Lift-Limit with Bypass

Same as for a lever controlled truck with the exception of the Blocking Solenoid (EV12). When the VM senses a change in state at the switches that limit lift, the VM sends a communication message to the Hydraulic Control Board. The Hydraulic Control Board then removes the request for the requested function.

Section 8.Theory of Operation Model 4700 Maintenance Manual

Pinout MatrixAll Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677

Pinout Matrix

The pinout matrix chart lists functions and normal voltages of terminals and harness connector pins. The matrix columns have the following meanings:

•Item: sequential number to aid in reference.

•Connection: actual connector/wire designation or component as identified on the electrical schematic (listed alpha-numerically).

•Function Description: brief definition of the signal carried on the wire.

•Theory of Operation: detailed description of the signal carried on the wire. If the signal is variable, the state of a related component that causes the signal to vary is indicated. Also identifies possible causes for lack of correct signal.

•Normal Level: the approximate voltage that must be seen on that wire for the state indicated. Unless otherwise indicated, voltages are measured with respect to (wrt) B–.

•Signal Source: the device or connection that supplies the signal directly to the wire.

•Signal User: the device or connection where the wire directly delivers the signal.

All Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677

Publication 1160093, Issued: 20 May 2013