TABLE J
Diagonal (Bias) Ply Log Skidder Drive Wheel Tires Used on Cable or Grapple Skidders
TIRES USED AS SINGLES
TIRE TYPE NOMENCLATURE
Code No.

Tire Type

LS-2
LS-3
Intermediate Tread
Deep Tread
 
Basic Tire Load Ratings for Tire Selections—MAXIMUM SPEED: 5 MPH (10 KM/H)
  TIRE LOAD LIMITS AT VARIOUS COLD INFLATION PRESSURES
TIRE
SIZE
psi
kPa
25
170
30
210
35
240
40
280
40
280
16.9-30lbs.615071007950 (10)86009250 (14)
 kg279032203600 (10)39004200 (14)
18.4-26lbs.69007950 (10)8950 (12)  
 kg31203600 (10)4060 (12)  
18.4-30lbs.750084009500 (12)  
 kg340038204300 (12)  
18.4-34lbs.79508590 (10)   
 kg36004060 (10)   
23.1-26lbs.10000 (10)1160012700 (14)  
 kg4540 (10)52605760 (14)  
24.5-32lbs.1230013900 (12)15400 (16)  
 kg55806300 (12)7000 (16)  
LOW SECTION HEIGHT
28L-26lbs.11600 (12)13100 (14)14300 (16)  
 kg5260 (12)5940 (14)6500 (16)  
30.5L-32lbs.14700 (12)16400 (16)18500 (20)  
 kg6650 (12)7450 (16)8400 (20)  
DH35.5L-32lbs.19500 (16)22500 (20)   
 kg8850 (16)10210 (20)   
NOTES 1: Figures in parentheses denote ply rating for which bold face loads and inflations are maximum.
2: For shipping purposes, tire inflation pressures may be increased to 30 psi. (Consult tire manufacturer for minimum tire shipping pressure.) This higher inflation pressure must be reduced to operating inflation pressure BEFORE the skidder is removed from the carrier.
3: “Tire Load Limit” for log skidders is defined as the maximum load for an individual tire due to the total radial forces imposed on the tire DURING OPERATION. This maximum load includes total vehicle weight with accessories, plus load winching or grappling loads and weight transfer.
4: The above table applies only to log skidder tires used on cable or grapple skidders with a maximum speed of 5 MPH. For use on other types of logging or forestry equipment or at speeds greater than 5 mph, refer to Table I.
5: When used as duals, tire loads must be reduced. Multiply figures in Table by .88.
6: Consult rim and wheel manufacturer for rims for this type of service.


FOR RIM AND WHEEL LOAD INFORMATION, SEE IMPORTANT NOTES IN CHARTS I AND II IN GENERAL FARM TIRE INFORMATION