Terex TS14G, Maintenance Manual

Page: 185 / 376

Section 220-0010
SM 1768 Rev 2 04-04
5
housing. Total piston travel is 20.6 mm (0.812 in). One
way of checking spool travel is to mark the spool in its
normal position and then mark is again when the
above conditions are met. Then measure the distance
between the two marks; it should be 10.3 mm
(0.406 in).
3. To make this adjustment, either install shims behind
the steering cam or change the length of the link
assembly.
4. Repeat the above procedure when adjusting the
other steering cam.
5. Check the steering operation after adjusting the
steering cam. Machine must steer 90° in each
direction and the flow reversing valve pistons must
travel 20.6 mm (0.812 in) into the valve housing from
neutral.
Steering Stop Blocks
Steering stop blocks are welded to the steering frame
to prevent the steering cylinder pistons from bottoming
when the steering cylinders are extended to their
maximum strokes (Fig. 4). When these stop blocks
become worn, the cylinders may be damaged when
the scraper is turned a full 90°, so the maximum
strokes of the steering cylinders should be adjusted as
follows:
1. Turn the tractor until one cylinder is extended to
within 3.2 mm (0.125 in) of the maximum eye-to-eye
dimension of 1 274.1 mm (50.16 in), which is
dimension ‘A’ shown in Fig. 4.
2. If there is a gap, due to wear, between the king pin
section and the steering frame stop block, measure
the distance between the king pin section and the
steering frame. Refer to Fig. 4.
3. Burn off the weld and remove the worn stop block.
Weld a new stop block to the steering frame according
to the welding direction given in Fig. 4. The new
blocks, which range in thickness from 6.4 to 19.1 mm
(0.25 to 0.75 in) in 3.2 mm (0.125 in) increments,
should be slightly thicker than the measured gap.
4. Swing the tractor 180° in the opposite direction and
repeat steps 1, 2 and 3.
Note:
A minimum block thickness of 6.4 mm (0.25 in)
is required, regardless of the maximum eye-to-eye
dimension.
Steering System - Steering Lines & Fittings
SM - 2156
Fig. 4 - Steering Stop Block Installation
* * * *
- STOP BLOCK -
USE WELD ROD E-70
PREHEAT
200˚ TO 300˚F
0.25 INCH
AS REQUIRED
DIM.
“A”
0.50
˚F
200˚ TO 300˚
IN.
0.25
0.50
˚C
95˚ TO 150˚
mm
6.4
12.7
MEASURE WEAR GAP HERE
KING PIN SECTION
STEERING FRAME
Courtesy of Machine.Market