Daewoo Solar 300LC-V, Manual

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S0709401K
Page 53
Main Control Valve (Kayaba)
REASSEMBLY PROCEDURE OF CONTROL VALVE BODY
Reassembly of Relief Valve
1. Install main relief valve (68). Tightening torque: Tightening torque: 7.95 - 8.97 kg•m (58 - 65 ft lb).
2. Install over load relief valve (69, six places) in each section. Tightening torque: 7.95 - 8.97 kg•m (58 -
65 ft lb).
3. Install spring seat (67-16) on small diameter of poppet. Then insert spring (67-8) and them with
sleeve to body (67-1). Tightening torque: 10.50 - 11.52 kg•m (76 - 83 ft lb).
Reassembly of Load Check Valve
1. Install O-ring (36) on arm (1, 2, section D-D), boom (1, 2, section E-E) and swing section (section
F-F). Install poppet (34) and spring (35). Mount flange (37) and install socket head bolt (75).
Tightening torque: 5.91 - 6.53 kg•m (43 - 47 ft lb).
2. Install O-ring (36) on travel section (section H-H). Install poppet (51) and spring (35). Mount flange
(37) and install socket head bolt (75). Tightening torque: 5.91 - 6.53 kg•m (43 - 47 ft lb).
3. Install O-ring (36) on travel straight section (section H-H). Mount flange (37) and install socket head
bolt (75). Tightening torque: 5.91 - 6.53 kg•m (43 - 47 ft lb).
4. Install poppet (51) and spring (35) in common (section I-I). Insert spacer (53) with O-ring (54) and
backup ring (55). Tightening torque: 3.98 - 4.49 kg•m (29 - 32 ft lb).
5. Install O-ring (36) on spare section (section G-G). Install poppet (44) and spring (45). Mount flange
(43) and install socket head bolt (96). Tightening torque: 5.91 - 6.53 kg•m (43 - 47 ft lb).
6. Tighten flange assembly (92) with O-ring. Tightening torque: 20.90 - 23.15 kg•m (151 - 167 ft lb).
7. Insert poppet (49) and spring (48) in travel section (section G-G). Install plug (46) with O-ring (47).
Tightening torque: 10.91 - 11.93 kg•m (79 - 86 ft lb).
8. Bucket section (section F-F)
A. Insert piston (95) and O-ring (102) on plug (94) and install in body (96). Tightening torque:
10.50 - 11.52 kg•m (76 - 83 ft lb).
B. Insert backup ring (103), O-ring (104), spring (98) and poppet assembly (100) in sleeve (99),
and install it to body (96).
CAUTION!
When reassembling safety valve, securely tighten plug that is installed in body.
Do not loosen adjusting plug for pressure setting or lock nut.
Adjusting plug for pressure setting is dangerous because pressure setting will be changed
which may result in a dangerous situation.
IMPORTANT
Be careful of installation position of O-ring and backup ring.
If they are reversed, the O-ring will be damaged and an oil leak can occur.