Multiquip PS403020 MQ PS4030 SAW Operation, Wheel Drive System, Starting and Stoppingthe Engine

MQ PS4030 SAW — OPERATION

Wheel Drive System

The MQ PS4030 saw features a cable-controlled hydrostatic transmission with infinite Forward-Neutral-Reverse (F-N-R) speed adjustment. This is controlled by the operation through the control handle located on the operator control panel. The saw is designed with locked axle drive, and can travel at speeds up to 275 feet per minute.

Abi-directional variable displacement transmission pump powers two hydraulic wheel motors that are directly coupled to the wheels. The hydrostatic transmission provides vehicle propulsion in both forward and reverse depending on the position and direction of movement of the F-N-R control handle. The hydrostatic transmission also provides dynamic braking action.

Figure 31. F-N-R Control

Refer to Figure 31.

■To increase the forward speed, slowly move the control handle FORWARD.

■To decrease the forward speed, pull the control handle

BACKWARD.

■When the control handle is in the Neutral position the saw will have neither a forward nor reverse motion.

■As the control handle is passed backward through the neutral position the saw will start to move in REVERSE. Reverse speed is also controlled by the position of the control handle.

STARTING AND STOPPINGTHE ENGINE

WARNING

DO NOT leave the saw unattended while the engine is running. NEVER start, park, or leave the saw unattended on a slope.

CAUTION

Allow the engine to warm up before increasing engine speed.

DO NOT stop the engine abruptly when hot. Reduce the throttle to idle and allow the engine to run one or two minutes before turning the ignition switch off. This allows the engine to cool down preventing damage to the Turbo charger.

Starting the Engine

1.Move the speed control handle to the NEUTRAL position.

2.Set the throttle to IDLE.

3.Make sure the Emergency Stop Button is in the OUT position.

4.Ensure that water lines are attached and water is flowing to the saw blade.

5.Turn the Ignition Switch to the ON position. (Figure 32.)

Figure 32. ON/OFF Switch

6.Wait for the Glow Plug Indicator Light to go out.

7.Turn Ignition Switch to the START position; RELEASE switch after engine starts.

PAGE 36 — MQ PS4030 SAW • OPERATION MANUAL — REV. #0 (02/29/08)