11-6. HYDRAULIC RESERVOIR MAINTENANCE (CONT)
c. Draining and Refilling (SHEET 1 OF 3).
This task covers draining and refill-
ing hydraulic reservoir with oil. Hydraulic oil shall be
new oil after every 1000 hours of operation or every six
f i r s t .
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
drained and refilled with
months whichever occurs
Container, 17-20 gallon capacity
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Hydraulic oil, 17 gallons (Appendix C, item 13)
( 1 ) P a r k l o a d e r o n a l e v e l s u r f a c e.
(2) Unlock and open front access door.
( 3 ) I f h y d r a u l i c o i l i s n o t a l r e a d y h o t , h e a t i t b e f o r e d r a i n i n g.
(a) Start engine and operate at 1500 rpm.
(b) Hold BUCKET control lever in RAISE position for 15 seconds; then place
control lever in NEUT. position for 30 seconds.
(c) Repeat step (b) until outlet tube is warm to
(d) Lower bucket to ground and turn off engine.