Dong Feng ZB25, Operator'S Manual

Page: 87 / 112

Factory Direct Tractors
Front End Loader
11.2 Storing at the end of season
1.
Coat all exposed cylinder shafts with
corrosion preventative.
2.
Store the loader in a dry location
protected from the weather.
3. Clear the unit of all mud and dirt, touch
up the paint to prevent rust.
4.
Install dirt caps on the quick couplers
to prevent dirt contamination of the
hydraulic oil system or connect them
together.
11.3 At the start of a season
1. Check hydraulic oil level in tractor
and top up if necessary (refer tractor
manual).
2. Clean all dirt and debris from all quick
couplers.
3.
Check all hydraulic hoses and replace if
necessary.
4.
Tighten loose bolt and nuts.
5.
Lubricate moving parts.
6. Check the bucket teeth and sharpen or
replace if necessary.
7.
Run the unit slowly and check the
operation control system for correct
working condition before starting to
operate.
11.4 General torque specification
American standard cap screws with UNC or UNF
threads
Metric cap screws
SAE grade No.
GR 5 or GR 8 Property class 8.8 Approx. SAE GR5
1/4
(N-m)
(kgf-m)
(ft-lbs)
9.8 to 11.7
1.0 to 1.2
7.2 to 8.6 M6
(N-m)
(kgf-m)
(ft-lbs)
9.8 to 11.7
1.0 to 1.2
7.2 to 8.6
5/16
(N-m)
(kgf-m)
(ft-lbs)
19 to 23.1
1.9 to 3.4
14 to 17
M8
(N-m)
(kgf-m)
(ft-lbs)
19 to 23.1
1.9 to 3.4
14 to 17
3/8
(N-m)
(kgf-m)
(ft-lbs)
33.9 to 40.7
3.5 to 4.2
25 to 30
M10
(N-m)
(kgf-m)
(ft-lbs)
33.9 to 40.7
3.5 to 4.2
25 to 30
1/2
(N-m)
(kgf-m)
(ft-lbs)
88.1 to 105.8
9.0 to 10.8
65 to 78
M12
(N-m)
(kgf-m)
(ft-lbs)
88.1 to 105.8
9.0 to 10.8
65 to 78
9/18
(N-m)
(kgf-m)
(ft-lbs)
122 to 146.4
12.4to 14.9
90 to 108
M14
(N-m)
(kgf-m)
(ft-lbs)
122 to 146.4
12.4to 14.9
90 to 108
5/8
(N-m)
(kgf-m)
(ft-lbs)
176.3 to 211.5
18.0to 21.6
130 to 156
M16
(N-m)
(kgf-m)
(ft-lbs)
176.3 to 211.5
18.0to 21.6
130 to 156
11-3