TB-9-1000-234-13
EXERCISING OF RECOIL MECHANISMS AND EQUILIBRATORS
TECHNICAL BULLETIN
SEPTEMBER 2010
TB-9-1000-234-13 - Page 21 of 52
TB 9-1000-234-13
2-5
b.
Oil Pump M3 (Single or Double Type Recoil Mechanisms).
(1)
On certain types of replenishers (table 2-2), remove hydraulic fluid from replenisher
cylinder.
(2)
Remove replenisher hose from recoil cylinder or cradle.
(3)
Install plug or cap to seal replenisher hose hole.
(4)
Level cannon and remove plug from rear of recoil cylinder.
(5)
Attach hose from oil pump M3 to recoil cylinder.
(6)
Mark the cannon tube 6 to 8 inches from gun shield.
(7)
Using oil as specified in the lubrication order for weapon being exercised, operate the oil
pump and hydraulically force the gun 6 to 8 inches out-of-battery, as marked on the gun
tube.
Table 2-2.
Exercising Procedures for Hydrospring Recoil Mechanisms
Weapon System
Method
Paragraph References
Inches
distance rod
to be
extended
TANK, COMBAT, FULL-
TRACKED:
105-mm gun,
M48A5
2.1b
X
2.2b
X
2.2g
6-8
TANK, COMBAT FULL-
TRACKED:
120-mm, gun,
M1A1 ABRAMS
X
X
X
6-8
TANK, COMBAT FULL-
TRACKED:
120-mm, gun,
M1A2SEP ABRAMS
X
X
X
6-8
(8)
Release valve on oil pump and allow cannon to move back into battery.
(9)
Repeat operation at least three times to ensure that recoil slide area and seals are
lubricated.
NOTE
Steps 10 and 11 are not required for Abrams tanks.
(10) Apply WTR grease as specified in paragraph 1.3e.
(11) Remove 2 by 4 and proceed as in step (8) above.
(12) Remove plug or cap and attach replenishment hose by one or two threads.
(13) Fill replenisher, bleeding out any air in replenisher hose.
(14) Tighten replenisher hose and recheck for proper amount of oil as specified in the pertinent
technical manual.
Back to Top
