Maintenance
12
CHANGE HYDRAULIC CYLINDER
1. Disconnect machine from power.
2. Disconnect cylinder lines. Have a container ready to catch oil from lines.
3. Remove cylinder securing hexhead bolt from lower cutting head support.
4. Remove clips and pin from cylinder and slide plate.
5. Remove cylinder upper pin.
6. Remove cylinder.
CHANGE REAR WHEEL (FIG. 21)
1. Jack machine up by pushing the cylinder lift forward to lower and adjust the angle
of the cutting head to raise machine.
2. Place blocks under forklift cups on the side of the machine that wheel is being
changed.
3. Let cylinder down resting machine on blocks allowing rear wheel to be lifted off the
floor.
4. Remove five 1/2’’ lug nuts with an extended arm wrench, remove wheel.
5. Replace wheel.
6. Replace five lug nuts and tighten, making sure lug nuts are very tight.
7. Raise cylinder to raise machine off of blocks. Remove blocks and lower machine.
8. Repeat to other side if necessary.caster wheel maintenance
CHANGE CASTER
Keep clean and free of debris; ensure it can move freely.
1.
Give a shot of grease in grease fitting on caster every month to keep caster moving
freely.
2.
To remove caster, machine will need to be raised. Push the cylinder lift lever for
-
ward to lower and adjust the angle of the cutting head to jack up the machine.
Block up machine with wooden block. Remove four bolts, pull caster off and clean/
replace as needed.
3.
Replace caster.
4.
Pull caster toward rear of machine; re-place and tighten the four bolts.
5.
Lower the machine.
SEAT REPLACEMENT
1. Rotate hood to bumper stops.
2. Remove four nuts securing seat rails.
3. Replace seat; screw on nuts.
FIG. 21
Summary of Contents for 7700
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