Table 1 Table 2 1-20 Track shoe Specification Category 600mm triple grouser Standard A 600mm double grouser Option A 700mm triple grouser, double grouser Option B 750mm triple grouser Option B 800mm triple grouser Option C Category Applications Precautions A Rocky ground, river beds, normal soil Travel at low speed on rough ground with large obstacles such as boulders or fallen trees B Normal soil, soft ground These shoes cannot be used on rough ground with large obstacles such as boulders or fallen trees Travel at high speed only on flat ground Travel slowly at low speed if it is impossible to avoid going over obstacles C Extremely soft gound (Swampy ground) Use the shoes only in the conditions that the machine sinks and it is impossible to use the shoes of category A or B These shoes cannot be used on rough ground with large obstacles such as boulders or fallen trees Travel at high speed only on flat ground Travel slowly at low speed if it is impossible to avoid going over obstacles