NOTE: When the linkage travel adjustment procedure is being done as part of the loader neutral adjustment procedure, check the torsion bushings at the pump and at the bell cranks to be sure they are not binding or too loose, which will affect the procedure.
Raise the lift arms and install an approved lift arm support device. (See Installing on Page 10-20-1.)
Lift and block the loader. (See Procedure on Page 10-10-1.)
Raise the operator cab. (See Raising on Page 10-30-2.)
Pre-load tension in the torsion bushings must be removed before adjusting the steering linkage.
Loosen the nut (Item 1) 3 to 4 turns, then loosen the bolt (Item 2). The bolt (Item 2) [Figure 50-100-37] must be loosened enough to allow the torsion bushing to turn freely between the steering bellcrank and the linkage bar.
Loosen the nut (Item 1) only until the tension is released from the torsion bushing (Item 2) [Figure 50-100-38].
The bolt must be loose enough to allow the torsion bushing (Item 2) [Figure 50-100-38] to turn freely between the torsion bushing and the linkage bar.
Remove access plug from the top of the control panel.
Turn the control lever drift adjustment bolts (Item 1) [Figure 50-100-39] (one on each control lever) out until it is flush with the bottom of the nut.
Move the right side steering lever to the rear and install a 3/8 in. (10 mm) thick spacer (Item 1) between the pintle arm cam (Item 2) and the centering block (Item 3) [Figure 50-100-40].
Move the right side steering lever forward and install a 15/16 in. (24 mm) thick spacer (Item 1) between the center plate (Item 2) and the mounting plate (Item 3) [Figure 50-100-41].
This will allow the pintle arms to move freely while adjusting the steering linkage for full forward travel speed.
Remove the 3/8 in. (10 mm) thick spacer (Item 4) [Figure 50-100-41].
Before adjusting the linkage, check that the base pintle arm mounting bolt (Item 1) and both of the upper pintle mount bolts (Item 2) [Figure 50-100-42] are tighten to 35 – 40 ft.-lb. (48 – 54 N•m) torque. There should be no play between the pintle arm and the square pump shaft.
Also check that the cam mounting nuts or bolts (Item 4) [Figure 50-100-40] are tight, 35 – 40 ft.-lb. (48 – 54 N•m) torque.
Loosen the two bolts and nuts (Item 1) [Figure 50-100-43] on each steering linkage bar.
Move the left control lever to the full forward position, then pull forward on the left rear linkage bar until the pintle arm is rotated to the front as far as possible [Figure 50-100-44]. Use a locking plier, clamp the two linkage bars together.
Installation: Tighten the nuts and bolts to 35 – 40 ft.-lb. (47,5 – 54,2 N•m) torque.
Check the lever movement to make sure that the pintle arm and the control lever are both at full stroke at the same time. This will allow for maximum forward speed.
Repeat the linkage travel adjustment procedure for the right side linkage.
Remove the spacer (Item 1) [Figure 50-100-45].
Disconnect the remote start tool. (See REMOTE START TOOL KIT-MEL1563 on Page 10-60-1.)
Tighten the two bolts (Item 1) and nuts (Item 2) to 35 – 40 ft.-lb. (47,5 – 54,2 N•m) [Figure 50-100-46].
Tighten the two bolts and nuts (Items 1 & 2) [Figure 50-100-47] to 35 – 40 ft.-lb. (47,5 – 54,2 N•m) torque at the steering bell cranks.
Push the control lever to full stroke and turn drift adjustment bolt (Item 1) [Figure 50-100-48] in until it touches the U-bolt holding the control lever.
Repeat steps on the other control lever.
Drive the loader forward and check for drift.
The traditional benchmark for drift is less than 10 ft. of “drift” in 100 ft. of travel distance.
If the drift is excessive to the left, turn the right adjustment bolt (Item 1) [Figure 50-100-48] in.
If the drift is excessive to the right, turn the left adjustment bolt in.
NOTE: When using the drift adjustment bolts, only adjust one bolt for each test drive. In addition, only move each bolt a maximum of one turn for each test drive. This will help prevent over-correction and excessive reduction in travel speed.
Drift adjustment is for forward travel only.
Adjust the drift to an acceptable level.
Re-install the plug in the drift bolt access hole after adjustment.