Section 7. Component Procedures
Model 4700 Maintenance Manual
Mast Tilt Adjustment
Mast
Mast Tilt Adjustment Perform the following procedure when adjusting mast tilt. 1. Attach a plumb line to the mast. See Figure 7-112. Figure 7-112. Measuring Mast Tilt
3. Place a square on the mast 39.4 in. (1 meter) below where the plumb line is attached and measure the distance between the face of the mast and the plumb line. 4. Repeat steps 1 thru 3 using the back of the mast main frame for backward tilt. 5. Adjust the stroke of the tilt cylinders as necessary to achieve the correct mast tilt. Refer to Figure 7-112 and Table 7-6. Table 7-6. Tilt Type
39.4 in. (1 meter)
Std
Mast Tilt Parameters Mast TT TF
Fwd Tilt Angle
Dim. A
3°
2 in. (52 mm)
Quad Optional Bottler’s Tilt
TT TF TT
5°
3.4 in. (87 mm)
9°
6.2 in. (156 mm)
Back Tilt Angle
Dim. A
6°
4.1 in. (105 mm)
4°
2.7 in. (70 mm)
6°
4.1 in. (105 mm)
Mast Tilt Position Switch Adjustment (Bottler’s Tilt Only) Trucks equipped with the Bottler’s Tilt option require mast mounted switches (S11 and S18) for the VM to determine carriage and mast position. Mast Face 39.4 in. (1 meter) from plumb line attach point
Plumb Line
Adjust the Mast Tilt Position Switch (S18) so that it opens when the mast is tilted beyond 3° forward. 1. Attach a plumb line to the mast. See Figure 7-112. 2. Place a square on the mast 39.4 in. (1 meter) below where the plumb line is attached and tilt the mast forward 3° (2 in./52 mm at Dim. A in Figure 7-112).
Dim. A
3. Adjust Mast Tilt Position Switch (S18) bracket so that the switch opens when the mast is tilted further forward.
2. Tilt the mast forward completely.
7-90
Publication 1160093, Issued: 20 May 2013
