Vertically Adjustable Cab - Kalmar DRF420-60S5 Maintenance Manual

Table of Contents

1. Sensor damping (trailing edge of cab on left side)

2. Indicator plate damping

3. Chain sliding cab

4. Hydraulic motor sliding cab

5. Control valve sliding cab

6. Indicator plate damping

9 Frame, body, cab and accessories – 9.10.5 Vertically adjustable cab

Maintenance manual DRF 400–450

https://www.forkliftpdfmanuals.com/

Hydraulic cab movement (sliding cab), component

1. Load signal (LS)

2. Pressure supply (P)

3. Tank return (T1)

4. Connection hydraulic motor (B)

5. Tank return (TP)

6. Connection hydraulic motor (A)

Vertically adjustable cab

Cab lift and lowering, function description

Cab lift and lowering means that the cab can be raised or lowered

hydraulically during operation to improve the operator's visibility.

The cab's height is adjusted with a hydraulic cylinder in a frame that

secures the cab. The cab can be secured in raised position with two

safety locks.

For safety reasons, the machine's speed is reduced and the trans-

mission is blocked in second gear when the cab is lifted.

Damping means that the speed of functions is reduced automatical-

ly near the end-positions. This results in less stress on the mechan-

ical parts when stopping in the end-positions.

Position sensors sense when damping should be activated. When

damping is activated, the control unit in question reduces the con-

trol current to the solenoid valve for that function.

Table of Contents