PAGE 22 — HTX6H, STX6H TROWEL • SETUP, ADJUSTMENTS AND CALIBRATIONS — REV. #1 (09/07/17)
Steering Pressure Adjustment
1. Disable cold start.
2. Install a 300 or 600 PSI gauge on steering pressure
port (Figure 29).
3. Start machine.
4. Increase engine rpm to full operating RPM.
5. Loosen 3/4" jam nut on steering valve (Figure 31).
Figure 31. Steering Pressure Adjustment
6. Using a 1/4" allen wrench, adjust the small hex nut
within the larger hex jam nut.
7. Adjust to proper steering pressure:
260 psi ± 10 psi (HTX6H)
290 psi ± 10 psi (STX6H)
8. Retighten jam nut.
9. Return engine to idle.
10. Turn off machine and remove gauge.
11. Record Pressure on Machine Information and
Maintenance Log.
TROWEL SPEED ADJUSTMENT/SETUP
STEERING
VALVE
3/4 JAM NUT
1/4 HEX
NUT
ADJUSTMENT
SCREW
CAUTION
Machine movement will occur during this step. Ensure
machine is secure or operator is present in seat. All
guards should be in place. Keep fingers, hands, hair,
and clothing away from all moving parts to prevent
injury.
MACHINE SETUP AND CALIBRATION
Adjust Zero Stroke Position
1. Start machine.
2. Ensure trowel is running at idle with no stroke. On a
cold trowel, the unit will go into cold start mode and
not be at idle. To place the trowel at idle speed, disable
cold start with the WST.
3. Elevate machine so blades are no longer contacting
floor. Make sure to follow proper lifting procedures.
Refer to Lifting Safety Information section.
4. Ensure blades are not rotating. If rotating, continue to
next step and adjust per instructions. Otherwise, set
trowel on ground and verify jam nut (Item D, Figure 32)
is tight then continue to next section (Right Side Trowel
Speed Adjustment).
Figure 32. Zero Stroke Position Adjustment
5. Lower trowel and shut off.
6. Loosen jam nut (Item D, Figure 32).
7. Remove retaining screw (Item C, Figure 32). The
spacer (Item A, Figure 32) will also come off.
8. Turn rod end (Item B, Figure 32) in, shortening overall
length of cylinder assembly.
9. Reinstall retaining screw (Item C, Figure 32) and spacer
(Item A, Figure 32). Apply blue loctite to make sure
screw will not come off.
10. Tighten jam nut (Item D, Figure 32).
11. Restart machine and repeat steps 2 thru 8 as
necessary, until blades no longer spin.
STROKE
CYLINDER
D
C
B
A
