Doosan D20S-5 Operation & Maintenance Manual page 134

Maintenance Section Maintenance Section
Fork Inspection Fork Inspection
Establish a daily and 12 month inspection routine Establish a daily and 12 month inspection routine
by keeping a record for the by keeping a record for the forks on each lift truck.
Initial information should include the machine serial Initial information should include the machine serial
number on each the forks are used, the fork number on each the forks are used, the fork
manufacturer, type, original section size, original manufacturer, type, original section size, original
length length and and
characteristics specified in the fork design. characteristics specified in the fork design.
Record the date and results of each inspection, Record the date and results of each inspection,
making sure the following information is included. making sure the following information is
Actual wear conditions, such as percent of Actual wear conditions, such as percent of
 
original blade thickness original blade thickness remaining.
Any damage, failure or deformation which might Any damage, failure or deformation which might
 
impair the use of the truck. impair the use of the truck.
Note any repairs or Note any repairs or maintenance.
 
An ongoing record of this information will help in An ongoing record of this information will help in
identifying proper inspection intervals for each identifying proper inspection intervals for each
operation, in identifying and solving problem areas operation, in identifying and solving problem areas
and in anticipating time for replacement of the and in anticipating time for replacement of the
forks. forks.
forks on each lift truck.
capacity. capacity. Also Also list list any any
included.
remaining.
maintenance.
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First Installation First Installation
1. 1. Inspect forks to ensure they are the correct size Inspect forks to ensure they are the correct size
for the truck on which they will be used. Make for the truck on which they will be used. Make
sure they are the correct length and type for the sure they are the correct length and type for the
loads to be handled. loads to be handled.
If the forks have been previously used, perform If the forks have been previously used, perform
the "12 the "12 Month Inspection". Month Inspection".
If the forks are rusted, see "Maintenance and If the forks are rusted, see "Maintenance and
Repair". Repair".
2. 2. Make sure fork blades are level to each other Make sure fork blades are level to each other
within acceptable tolerances. See "Forks, Step within acceptable tolerances. See "Forks, Step
4," in the "2000 Service Hours or Yearly" in 4," in the "2000 Service Hours or Yearly" in
"Maintenance Intervals" "Maintenance Intervals"
3. 3. Make sure positioning lock is in place and Make sure positioning lock is in place and
working Lock forks in position before using working Lock forks in position before using
truck. See "Forks, Step 7", in the "2000 Service truck. See "Forks, Step 7", in the "2000 Service
Hours or Yearly" in "Maintenance Intervals". Hours or
special special
Daily Inspection Daily Inspection
1. 1. Visually inspect forks for cracks, especially in Visually inspect forks for cracks, especially in
the heel section, around the mounting brackets, the heel section, around the mounting brackets,
and all weld areas. Inspect for broken or jagged and all weld areas. Inspect for broken or jagged
fork tips, bent or twisted blades and shanks. fork tips, bent or twisted blades and shanks.
2. 2. Make sure positioning lock is in place and Make sure positioning lock is in place and
working. Lock the forks in position before using working. Lock the forks in position before using
the truck. See "2000 Service Hours or Yearly" in the truck. See "2000 Service Hours or Yearly" in
"Maintenance Intervals". "Maintenance Intervals".
3. 3. Remove all defective forks from Remove all defective forks from service.
Yearly" in "Maintenance Intervals".
service.